USPC Patent Classifications

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Class 383 flexible bags
uspcdescription
383/1383 flexible bags/(1) biodegradable feature
383/2383 flexible bags/(2) selectively adjustable volume
383/3383 flexible bags/(3) inflatable
383/4383 flexible bags/(4) convertible
383/5383 flexible bags/(5) tamper indicating
383/6383 flexible bags/(6) lifting or suspending element (e.g., handle)
383/7383 flexible bags/(6) lifting or suspending element (e.g., handle) (7) unitary with bag (e.g., element formed by hand hole)
383/8383 flexible bags/(6) lifting or suspending element (e.g., handle) (7) unitary with bag (e.g., element formed by hand hole) (8) loop extending between opposite walls
383/9383 flexible bags/(6) lifting or suspending element (e.g., handle) (7) unitary with bag (e.g., element formed by hand hole) (9) bag material includes aperture for rodlike support
383/10383 flexible bags/(6) lifting or suspending element (e.g., handle) (7) unitary with bag (e.g., element formed by hand hole) (10) bag material includes hand-receiving aperture
383/11383 flexible bags/(6) lifting or suspending element (e.g., handle) (11) magnetic or adhesive-type element (includes hook and loop type fastener)
383/12383 flexible bags/(6) lifting or suspending element (e.g., handle) (12) attached to bag frame
383/13383 flexible bags/(6) lifting or suspending element (e.g., handle) (13) detachable
383/14383 flexible bags/(6) lifting or suspending element (e.g., handle) (14) with provision for positioning element in nonuse location
383/15383 flexible bags/(6) lifting or suspending element (e.g., handle) (15) plural interengaging elements
383/16383 flexible bags/(6) lifting or suspending element (e.g., handle) (16) plural elements located at diverse bag regions (i.e., bag bottom, bag middle, and/or bag top)
383/17383 flexible bags/(6) lifting or suspending element (e.g., handle) (17) including reinforcement or stress distribution means attached to or adjacent element
383/18383 flexible bags/(6) lifting or suspending element (e.g., handle) (17) including reinforcement or stress distribution means attached to or adjacent element (18) extending across bag bottom
383/19383 flexible bags/(6) lifting or suspending element (e.g., handle) (17) including reinforcement or stress distribution means attached to or adjacent element (19) extending axially through bag interior to bag bottom
383/20383 flexible bags/(6) lifting or suspending element (e.g., handle) (17) including reinforcement or stress distribution means attached to or adjacent element (20) additional layer of material at element attachment location
383/21383 flexible bags/(6) lifting or suspending element (e.g., handle) (21) attached to distinct end wall
383/22383 flexible bags/(6) lifting or suspending element (e.g., handle) (22) hanging element
383/23383 flexible bags/(6) lifting or suspending element (e.g., handle) (22) hanging element (23) hook-type
383/24383 flexible bags/(6) lifting or suspending element (e.g., handle) (22) hanging element (24) closed loop
383/25383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element
383/26383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element (26) bag includes opening through bag material to receive element
383/27383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element (26) bag includes opening through bag material to receive element (27) opening extending through fold or folded bag portion
383/28383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element (28) secured to bag interior
383/29383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element (29) straddles bag mouth
383/30383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element (30) secured to folded bag closure
383/31383 flexible bags/(6) lifting or suspending element (e.g., handle) (25) single element (30) secured to folded bag closure (31) closure flap
383/32383 flexible bags/(32) with stacking feature
383/33383 flexible bags/(33) with means to maintain the bag mouth in an open configuration
383/34383 flexible bags/(33) with means to maintain the bag mouth in an open configuration (34) hinged mouth stiffeners
383/34.1383 flexible bags/(33) with means to maintain the bag mouth in an open configuration (34) hinged mouth stiffeners (34.1) stiffeners include four or more hinged segments
383/35383 flexible bags/(35) with means to facilitate manual separation of flattened bag walls
383/36383 flexible bags/(36) with integral funnel
383/37383 flexible bags/(37) plural
383/200383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.)
383/201383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (201) tearing facilitated by specified fiber or molecular orientation
383/202383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (202) combined with, or modified for opening by, a sharp-edged cutting implement or a piercing implement
383/203383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (203) including means for reclosing the bag
383/204383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (203) including means for reclosing the bag (204) including a bag portion which is completely separated from the bag during tearing (e.g., tear strip)
383/205383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (205) including a separate tearing element which is gripped and pulled to open the bag
383/206383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (205) including a separate tearing element which is gripped and pulled to open the bag (206) cord, string, wire, or thread
383/207383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (207) line of weakness delineates substantially the entire tearing path
383/208383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (207) line of weakness delineates substantially the entire tearing path (208) line of perforations having means for preventing leakage before opening
383/209383 flexible bags/(200) bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.) (207) line of weakness delineates substantially the entire tearing path (209) bag portion completely separated from the bag during tearing
383/210383 flexible bags/(210) bag closure secured by a releasable or frangible bond (e.g., peel seal)
383/210.1383 flexible bags/(210) bag closure secured by a releasable or frangible bond (e.g., peel seal) (210.1) having another independent closure for same access opening
383/211383 flexible bags/(210) bag closure secured by a releasable or frangible bond (e.g., peel seal) (211) adhesive bond
383/38383 flexible bags/(38) compartmented
383/39383 flexible bags/(38) compartmented (39) compartment-forming member secured to backing
383/40383 flexible bags/(38) compartmented (40) including auxiliary compartment
383/41383 flexible bags/(41) with plural access openings
383/42383 flexible bags/(42) with closure
383/43383 flexible bags/(42) with closure (43) self-closing type
383/44383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve)
383/45383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (45) with vent
383/46383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (46) with closure reinforcing or stiffening means
383/47383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (47) with means to facilitate opening closure
383/48383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (48) with supplemental closing feature
383/49383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (48) with supplemental closing feature (49) resilient
383/50383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (48) with supplemental closing feature (50) reversely folded portion of closure element
383/51383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (48) with supplemental closing feature (51) slit or slot
383/52383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (48) with supplemental closing feature (52) adhesive
383/53383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (53) in distinct end wall
383/54383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (53) in distinct end wall (54) including separate closure element
383/55383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (55) folded bag corner
383/56383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (55) folded bag corner (56) including separate closure element
383/57383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (57) closure includes inwardly folded bag wall portions
383/58383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (58) overlying access opening in bag material
383/59383 flexible bags/(42) with closure (59) including auxiliary means for forming leakproof closure seal
383/60383 flexible bags/(42) with closure (59) including auxiliary means for forming leakproof closure seal (60) annular gasket
383/61.1383 flexible bags/(42) with closure (61.1) independent closures for single access opening
383/61.2383 flexible bags/(42) with closure (61.1) independent closures for single access opening (61.2) having rib and groove
383/61.3383 flexible bags/(42) with closure (61.1) independent closures for single access opening (61.3) having zipper
383/61.4383 flexible bags/(42) with closure (61.1) independent closures for single access opening (61.4) having drawstring-type element
383/61.5383 flexible bags/(42) with closure (61.1) independent closures for single access opening (61.5) having securing element designed to extend through aligned openings in bag material (e.g., stitching, etc.)
383/62383 flexible bags/(42) with closure (62) with provision for positioning closure element in nonuse location
383/63383 flexible bags/(42) with closure (63) rib and groove
383/64383 flexible bags/(42) with closure (63) rib and groove (64) with sliding element
383/65383 flexible bags/(42) with closure (63) rib and groove (65) including means to facilitate disengagement
383/66383 flexible bags/(42) with closure (66) for access opening in sidewall
383/67383 flexible bags/(42) with closure (67) for access opening in bag bottom
383/68383 flexible bags/(42) with closure (68) elongated clamping elements
383/69383 flexible bags/(42) with closure (68) elongated clamping elements (69) sliding
383/70383 flexible bags/(42) with closure (70) twisted bag mouth
383/71383 flexible bags/(42) with closure (71) gathered bag mouth
383/72383 flexible bags/(42) with closure (71) gathered bag mouth (72) including drawstring-type securing element
383/73383 flexible bags/(42) with closure (71) gathered bag mouth (72) including drawstring-type securing element (73) with mouth opening aid
383/74383 flexible bags/(42) with closure (71) gathered bag mouth (72) including drawstring-type securing element (74) with means to maintain the securing element in closed configuration
383/75383 flexible bags/(42) with closure (71) gathered bag mouth (72) including drawstring-type securing element (75) in bag hem
383/76383 flexible bags/(42) with closure (71) gathered bag mouth (72) including drawstring-type securing element (76) through bag openings
383/77383 flexible bags/(42) with closure (71) gathered bag mouth (77) securing element consisting of unitary bag portion
383/78383 flexible bags/(42) with closure (78) including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls)
383/79383 flexible bags/(42) with closure (78) including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls) (79) including securing element designed to extend through aligned openings in closure element (e.g., stitching)
383/80383 flexible bags/(42) with closure (78) including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls) (80) cap-type
383/81383 flexible bags/(42) with closure (78) including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls) (81) reusable
383/82383 flexible bags/(42) with closure (78) including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls) (81) reusable (82) bag walls designed to be rolled together or folded on common fold line
383/83383 flexible bags/(42) with closure (78) including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls) (83) bag walls designed to be rolled together or folded on common fold line
383/84383 flexible bags/(42) with closure (84) including closure flap which overlaps sidewall exterior when closed
383/85383 flexible bags/(42) with closure (84) including closure flap which overlaps sidewall exterior when closed (85) bag walls designed to be rolled together or folded on common fold line
383/86383 flexible bags/(42) with closure (84) including closure flap which overlaps sidewall exterior when closed (86) reusable
383/86.1383 flexible bags/(42) with closure (84) including closure flap which overlaps sidewall exterior when closed (86) reusable (86.1) including fastening element removably extending through aperture in bag material
383/86.2383 flexible bags/(42) with closure (84) including closure flap which overlaps sidewall exterior when closed (86) reusable (86.1) including fastening element removably extending through aperture in bag material (86.2) aperture extends through closure flap
383/87383 flexible bags/(42) with closure (84) including closure flap which overlaps sidewall exterior when closed (86) reusable (87) flap side edges permanently secured to bag (e.g., sandwich bag type)
383/88383 flexible bags/(42) with closure (88) bag walls designed to be rolled together or folded on common fold line
383/89383 flexible bags/(42) with closure (88) bag walls designed to be rolled together or folded on common fold line (89) with separate securing element for roll or fold
383/90383 flexible bags/(42) with closure (88) bag walls designed to be rolled together or folded on common fold line (89) with separate securing element for roll or fold (90) element extends substantially 180 degrees or more around roll or fold
383/91383 flexible bags/(42) with closure (88) bag walls designed to be rolled together or folded on common fold line (89) with separate securing element for roll or fold (90) element extends substantially 180 degrees or more around roll or fold (91) element extends around side edge
383/92383 flexible bags/(42) with closure (92) including securing element designed to extend through aligned openings in bag material (e.g., stitching)
383/93383 flexible bags/(42) with closure (93) closure within bag
383/94383 flexible bags/(42) with closure (93) closure within bag (94) heat seal
383/95383 flexible bags/(42) with closure (93) closure within bag (95) reusable
383/96383 flexible bags/(42) with closure (93) closure within bag (95) reusable (96) stopper or plug
383/97383 flexible bags/(42) with closure (93) closure within bag (95) reusable (97) zipper
383/98383 flexible bags/(42) with closure (98) overlapped flaps
383/99383 flexible bags/(42) with closure (98) overlapped flaps (99) reusable
383/100383 flexible bags/(100) with venting or ventilation means
383/101383 flexible bags/(100) with venting or ventilation means (101) fluid circulates between bag plies
383/102383 flexible bags/(100) with venting or ventilation means (102) pervious material
383/103383 flexible bags/(100) with venting or ventilation means (103) opening in bag material
383/104383 flexible bags/(104) free-standing
383/105383 flexible bags/(105) wall details
383/106383 flexible bags/(105) wall details (106) transparent portion or window
383/107383 flexible bags/(105) wall details (107) specified seam structure
383/108383 flexible bags/(105) wall details (107) specified seam structure (108) waterproof
383/109383 flexible bags/(105) wall details (109) multi-layer or ply
383/110383 flexible bags/(105) wall details (109) multi-layer or ply (110) insulated
383/111383 flexible bags/(105) wall details (109) multi-layer or ply (111) removable ply
383/112383 flexible bags/(105) wall details (109) multi-layer or ply (112) stretchable layer or ply
383/113383 flexible bags/(105) wall details (109) multi-layer or ply (113) barrier layer or ply (e.g., waterproof)
383/114383 flexible bags/(105) wall details (109) multi-layer or ply (114) including specified end structure
383/115383 flexible bags/(105) wall details (109) multi-layer or ply (114) including specified end structure (115) overlapping extension formed by cuts in bag wall
383/116383 flexible bags/(105) wall details (109) multi-layer or ply (116) coating or lamination
383/117383 flexible bags/(105) wall details (117) woven or mesh-type material
383/118383 flexible bags/(105) wall details (118) stretchable
383/119383 flexible bags/(105) wall details (119) reinforced
383/120383 flexible bags/(105) wall details (120) pleated or gusseted
383/121383 flexible bags/(121) end structure (e.g. bottom)
383/121.1383 flexible bags/(121) end structure (e.g. bottom) (121.1) rigid bottom
383/122383 flexible bags/(121) end structure (e.g. bottom) (122) seamless
383/123383 flexible bags/(121) end structure (e.g. bottom) (123) formed by folding bag walls on common fold line and joining together
383/124383 flexible bags/(121) end structure (e.g. bottom) (123) formed by folding bag walls on common fold line and joining together (124) foldable to form distinct end wall
383/125383 flexible bags/(121) end structure (e.g. bottom) (125) overlapping extensions of opposed walls
383/126383 flexible bags/(121) end structure (e.g. bottom) (125) overlapping extensions of opposed walls (126) extension formed by cuts in bag wall
383/127383 flexible bags/(127) miscellaneous
383/901383 flexible bags/(901) hot water or ice bag
383/902383 flexible bags/(902) having nonbag use
383/903383 flexible bags/(903) stress relief
383/904383 flexible bags/(904) filling tube
383/905383 flexible bags/(905) dead fold (ductile) closure element
383/906383 flexible bags/(906) dispensing feature
383/907383 flexible bags/(907) peculiar, particular shape
383/908383 flexible bags/(908) material having specified grain direction or molecular orientation

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