USPC Class Details

Description: 55 gas separation / 55 gas separation/(490) with means securing or retaining separating media (495) unit or cohesive sheet-like media in flow line or frame (497) edge supporting or securing means for nonplanar sheet form filter (e.g., zigzag)

Hierarchy/Derived subclasses

55 / 490	-> 495	-> 497	-> 498
			-> 499

uspto searches

Patent Apps in 55/497

Granted Patents in 55/497

Use the links above or do an advanced search in ppubs for:
(55/497.ccls. or 55/498.ccls. or 55/499.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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