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) (499) with additional transversely arranged members

Hierarchy/Derived subclasses

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

uspto searches

Patent Apps in 55/499

Granted Patents in 55/499

Use the links above or do an advanced search in ppubs for:
(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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