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) (434) piston ring or piston ring expander or seat therefor (496) split single piece piston ring having opposed asymmetrical mirrored ends (497) arcuate or beveled mating surfaces

Hierarchy/Derived subclasses

277 / 345

-> 434

-> 496

-> 497

uspto searches

Patent Apps in 277/497

Granted Patents in 277/497

Use the links above or do an advanced search in ppubs for:
(277/497.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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