Canadian Patent Classifications

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Class 238 Railroads: trackway elements
cpcdescription
238/1(1) Miscellaneous
238/2(2) Roadbeds
238/3(2) Roadbeds (3) Highway Track
238/4(2) Roadbeds (4) Continuous
238/5(2) Roadbeds (5) Street Crossing
238/6(2) Roadbeds (6) Rail Paving
238/7(7) Portable Track Or Extension
238/8(8) Electrical Connections
238/9(8) Electrical Connections (9) Bolted or Expanded
238/10(8) Electrical Connections (10) Cast or Welded or Adhered
238/11(8) Electrical Connections (11) Combined with Rail Joints
238/12(12) Track Curves
238/13(13) Guard Rails
238/14(13) Guard Rails (14) Chairs or Plates
238/15(13) Guard Rails (15) Clamp
238/16(16) Stringers
238/17(17) Tie Arrangement
238/18(18) Ties
238/19(18) Ties (19) Rods
238/20(18) Ties (19) Rods (20) Adjustable
238/21(18) Ties (21) Insulation
238/22(18) Ties (22) Multi Section
238/23(18) Ties (23) Laminated
238/24(18) Ties (24) Enlarged Ends
238/25(18) Ties (25) Cushioned
238/26(18) Ties (26) Spring
238/27(18) Ties (27) Recessed Top Surface
238/28(18) Ties (27) Recessed Top Surface (28) Detachable Ends
238/29(18) Ties (27) Recessed Top Surface (29) Jaw and Seat
238/30(18) Ties (27) Recessed Top Surface (30) Rail Joint
238/31(18) Ties (31) Metal
238/32(18) Ties (31) Metal (32) Plural Element
238/33(18) Ties (31) Metal (32) Plural Element (33) Twin
238/34(18) Ties (31) Metal (32) Plural Element (33) Twin (34) Rail Locking
238/35(18) Ties (31) Metal (35) Tubular
238/36(18) Ties (31) Metal (35) Tubular (36) Rectangular
238/37(18) Ties (31) Metal (35) Tubular (36) Rectangular (37) Separate Lid or Bottom
238/38(18) Ties (31) Metal (38) Flat Plate or Bar
238/39(18) Ties (31) Metal (39) I or T Cross Section
238/40(18) Ties (31) Metal (40) Channel With Flange Up
238/41(18) Ties (31) Metal (41) Channel With Flange Down
238/42(18) Ties (42) Non Metallic
238/43(18) Ties (42) Non Metallic (43) Internal Reinforcement
238/44(18) Ties (42) Non Metallic (43) Internal Reinforcement (44) Bar, Tube or Plate
238/45(18) Ties (42) Non Metallic (43) Internal Reinforcement (45) Netting or Sheeting
238/46(18) Ties (42) Non Metallic (46) Armoured
238/47(47) Pedestals
238/48(47) Pedestals (48) Plural Bar
238/49(49) Rails
238/50(49) Rails (50) Reversible
238/51(49) Rails (51) Vignoles (Standard Rail)
238/52(49) Rails (51) Vignoles (Standard Rail) (52) Multiple Section
238/53(49) Rails (51) Vignoles (Standard Rail) (52) Multiple Section (53) Split Tread
238/54(49) Rails (54) Step Tread
238/55(49) Rails (54) Step Tread (55) Multiple Section
238/56(49) Rails (56) Special Sections
238/57(49) Rails (57) Substance
238/58(58) Rail Joints
238/59(58) Rail Joints (59) Insulated
238/60(58) Rail Joints (59) Insulated (60) End Posts
238/61(58) Rail Joints (59) Insulated (61) Chair
238/62(58) Rail Joints (59) Insulated (61) Chair (62) Twin
238/63(58) Rail Joints (59) Insulated (61) Chair (62) Twin (63) Base Plate or Base Bolted
238/64(58) Rail Joints (59) Insulated (61) Chair (64) Angle
238/65(58) Rail Joints (59) Insulated (65) Splice Bar
238/66(58) Rail Joints (66) Lubricated
238/67(58) Rail Joints (67) Cast On, Molten Filler or Welded
238/68(58) Rail Joints (68) Compromise
238/69(58) Rail Joints (69) Gravity
238/70(58) Rail Joints (70) Movable
238/71(58) Rail Joints (71) T Web U Base
238/72(58) Rail Joints (72) Key or Lug
238/73(58) Rail Joints (73) Spring
238/74(58) Rail Joints (74) Clamped
238/75(58) Rail Joints (75) Z Form
238/76(58) Rail Joints (76) Chair
238/77(58) Rail Joints (76) Chair (77) Twin
238/78(58) Rail Joints (76) Chair (77) Twin (78) Base Stiffened or With Base Plate
238/79(58) Rail Joints (76) Chair (77) Twin (79) Lapping Interlocked or Bolted Base Sections
238/80(58) Rail Joints (76) Chair (80) Angle
238/81(58) Rail Joints (76) Chair (80) Angle (81) Lapping, Interlocked or Bolted With Splice Bar
238/82(58) Rail Joints (76) Chair (80) Angle (82) Splice Bar Lateral Slide
238/83(58) Rail Joints (76) Chair (83) Integral
238/84(58) Rail Joints (76) Chair (83) Integral (84) Base Filler
238/85(58) Rail Joints (76) Chair (83) Integral (85) One Side Filler
238/86(58) Rail Joints (76) Chair (83) Integral (86) Two Side Filler
238/87(58) Rail Joints (87) Base Plate
238/88(58) Rail Joints (87) Base Plate (88) Splice Bar Lap
238/89(58) Rail Joints (87) Base Plate (89) Base Stiffener
238/90(58) Rail Joints (87) Base Plate (90) Center Support
238/91(58) Rail Joints (87) Base Plate (91) Rail Lock or Slide Clips
238/92(58) Rail Joints (92) Tread Bridge
238/93(58) Rail Joints (92) Tread Bridge (93) Rail Head Insert
238/94(58) Rail Joints (92) Tread Bridge (94) Mortised Head
238/95(58) Rail Joints (92) Tread Bridge (95) Head Section
238/96(58) Rail Joints (92) Tread Bridge (96) Rail Section
238/97(58) Rail Joints (97) Scarfed
238/98(58) Rail Joints (97) Scarfed (98) Longitudinally or Laterally Assembled
238/99(58) Rail Joints (97) Scarfed (99) Longitudinally or Vertically Assembled
238/100(58) Rail Joints (97) Scarfed (100) Longitudinally Assembled
238/101(58) Rail Joints (97) Scarfed (101) Laterally Assembled
238/102(58) Rail Joints (97) Scarfed (102) Vertically Assembled
238/103(58) Rail Joints (97) Scarfed (103) Two Movement Assembly
238/104(58) Rail Joints (97) Scarfed (104) Angularly Assembled
238/105(58) Rail Joints (105) Splice Bars
238/106(58) Rail Joints (105) Splice Bars (106) Structure
238/107(58) Rail Joints (105) Splice Bars (106) Structure (107) Webbed
238/108(58) Rail Joints (105) Splice Bars (108) Tapered
238/109(58) Rail Joints (105) Splice Bars (109) Spring
238/110(58) Rail Joints (105) Splice Bars (110) Multiple Part
238/111(58) Rail Joints (105) Splice Bars (111) Sliding
238/112(58) Rail Joints (105) Splice Bars (112) Slotted Bar or Bolt
238/113(58) Rail Joints (105) Splice Bars (113) Fastener
238/114(58) Rail Joints (105) Splice Bars (114) Nut and Bolt Lock
238/115(115) Tie Plates And Rail Seats
238/116(115) Tie Plates And Rail Seats (116) Embedded or Cast
238/117(115) Tie Plates And Rail Seats (117) Cushioned
238/118(115) Tie Plates And Rail Seats (117) Cushioned (118) Spring
238/119(115) Tie Plates And Rail Seats (119) Gravity
238/120(115) Tie Plates And Rail Seats (120) Plural Ties
238/121(115) Tie Plates And Rail Seats (121) Gauge
238/122(115) Tie Plates And Rail Seats (122) Chairs
238/123(115) Tie Plates And Rail Seats (123) Rail Braces
238/124(115) Tie Plates And Rail Seats (124) Integral
238/125(115) Tie Plates And Rail Seats (125) Sectional
238/126(115) Tie Plates And Rail Seats (126) Anchored
238/127(115) Tie Plates And Rail Seats (127) Integral
238/128(115) Tie Plates And Rail Seats (128) Modified Top Surface
238/129(115) Tie Plates And Rail Seats (128) Modified Top Surface (129) Wedge
238/130(115) Tie Plates And Rail Seats (128) Modified Top Surface (130) Cam
238/131(115) Tie Plates And Rail Seats (131) Tie Butting
238/132(115) Tie Plates And Rail Seats (132) Rotary
238/133(115) Tie Plates And Rail Seats (133) Screw Spike
238/134(115) Tie Plates And Rail Seats (134) Spike Lock
238/135(135) Fasteners
238/136(135) Fasteners (136) Rail Anchors
238/137(135) Fasteners (136) Rail Anchors (137) Spacers
238/138(135) Fasteners (136) Rail Anchors (138) Embedded
238/139(135) Fasteners (136) Rail Anchors (139) Rail Recess
238/140(135) Fasteners (136) Rail Anchors (140) Brace
238/141(135) Fasteners (136) Rail Anchors (141) Rail Support Contact
238/142(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (142) Welded
238/143(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (143) Pawl Or Cam
238/144(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (144) Single Flange
238/145(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (145) Bolted
238/146(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (146) Wedge
238/147(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (146) Wedge (147) Transverse Base
238/148(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (148) Plural Element
238/149(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (148) Plural Element (149) Interlocked Members
238/150(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (148) Plural Element (150) Base Member Contact
238/151(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (148) Plural Element (151) Side Member Contact
238/152(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (152) Integral
238/153(135) Fasteners (136) Rail Anchors (141) Rail Support Contact (152) Integral (153) Inclined
238/154(135) Fasteners (154) Transverse Slide
238/155(135) Fasteners (155) Rail Brace
238/156(135) Fasteners (156) Clamp
238/157(135) Fasteners (156) Clamp (157) Underlock
238/158(135) Fasteners (156) Clamp (158) Anchors
238/159(135) Fasteners (156) Clamp (159) Spring
238/160(135) Fasteners (156) Clamp (160) Clip Type
238/161(135) Fasteners (161) Hooks
238/162(135) Fasteners (162) Bolted Fastener
238/168(168) Foot Guards
238/169(169) Vehicle Retarders (On-Track Brakes)
238/170(170) Vehicle Stops
238/171(170) Vehicle Stops (171) Bumper Type (e.g., Bumping Post)
238/172(170) Vehicle Stops (172) Rail Clamped Chocks
238/173(170) Vehicle Stops (173) Sliding Type
238/174(174) Vehicle Derailers
238/175(175) Vehicle Derailers
238/176(175) Vehicle Derailers (176) Two Way
238/177(175) Vehicle Derailers (177) One Way
238/178(178) Crossings, Frogs And Mates
238/179(178) Crossings, Frogs And Mates (179) Cross-Frogs
238/180(180) Hose Bridges

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