USPC Class Details

Description: 91 motors: expansible chamber type / 91 motors: expansible chamber type/(218) cyclically operable (236) multiple exhaust passages (e.g., compression control, etc.) (240) fluid pressure actuated valve for second exhaust passage (241) compression actuated discharge to motive fluid supply

Hierarchy/Derived subclasses

91 / 218

-> 236

-> 240

-> 241

uspto searches

Patent Apps in 91/241

Granted Patents in 91/241

Use the links above or do an advanced search in ppubs for:
(91/241.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.

Display:

Back