USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(209) plural working chambers (210) axially spaced rotating members rotate on common axis (212) intermediate member separates and engages plural working members (214) interconnected abutments

Hierarchy/Derived subclasses

418 / 209

-> 210

-> 212

-> 214

uspto searches

Patent Apps in 418/214

Granted Patents in 418/214

Use the links above or do an advanced search in ppubs for:
(418/214.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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