USPC Class Details

Description: 277 seal for a joint or juncture / 277 seal for a joint or juncture/(345) seal between relatively movable parts (i.e., dynamic seal) (409) close proximity seal (e.g., contactless, fluent, etc.)

Hierarchy/Derived subclasses

277 / 345-> 409-> 410
  -> 411-> 412-> 413
    -> 414
    -> 415
    -> 416
    -> 417
    -> 418-> 419-> 420
    -> 421
   -> 422
  -> 423-> 424
   -> 425-> 426
   -> 427-> 428
   -> 429
   -> 430
  -> 431-> 432

uspto searches

Patent Apps in 277/409

Granted Patents in 277/409

Use the links above or do an advanced search in ppubs for:
(277/409.ccls. or 277/410.ccls. or 277/411.ccls. or 277/412.ccls. or 277/413.ccls. or 277/414.ccls. or 277/415.ccls. or 277/416.ccls. or 277/417.ccls. or 277/418.ccls. or 277/419.ccls. or 277/420.ccls. or 277/421.ccls. or 277/422.ccls. or 277/423.ccls. or 277/424.ccls. or 277/425.ccls. or 277/426.ccls. or 277/427.ccls. or 277/428.ccls. or 277/429.ccls. or 277/430.ccls. or 277/431.ccls. or 277/432.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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