USPC Class Details – HistoricIP

Description: 194 check-actuated control mechanisms / 194 check-actuated control mechanisms/(247) including part locked by detent and released by check (249) and means to impart thrust to check to unlock part (253) pivoted detent (254) and pivoted released part

Hierarchy/Derived subclasses

194 / 247	-> 249	-> 253	-> 254	-> 255
				-> 256

uspto searches

Patent Apps in 194/254

Granted Patents in 194/254

Use the links above or do an advanced search in ppubs for:
(194/254.ccls. or 194/255.ccls. or 194/256.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.