USPC Class Details – HistoricIP

Description: 226 advancing material of indeterminate length / 226 advancing material of indeterminate length/(52) means to engage longitudinally spaced modifications in material (55) prong operable intermittently to prevent longitudinal material movement (e.g., registration pins)

Hierarchy/Derived subclasses

226 / 52	-> 55	-> 56
		-> 57
		-> 58

uspto searches

Patent Apps in 226/55

Granted Patents in 226/55

Use the links above or do an advanced search in ppubs for:
(226/55.ccls. or 226/56.ccls. or 226/57.ccls. or 226/58.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.