USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(228) axially moving vane or abutment (229) sliding (230) positively biased (231) in opposite directions (232) spring or fluid bias

Hierarchy/Derived subclasses

418 / 228-> 229-> 230-> 231-> 232

uspto searches

Patent Apps in 418/232

Granted Patents in 418/232

Use the links above or do an advanced search in ppubs for:
(418/232.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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