USPC Class Details

Description: 55 gas separation / 55 gas separation/(315) plural serial basically diverse separating media (318) plural stages in unitary casing (320) deflector and fibrous, filamentary, particulate solids, or cohesive sheet filter type (321) multiple of one type in series of parallel in flow path (325) serially spaced deflectors (326) with connected trough or channel

Hierarchy/Derived subclasses

55 / 315

-> 318

-> 320

-> 321

-> 325

-> 326

uspto searches

Patent Apps in 55/326

Granted Patents in 55/326

Use the links above or do an advanced search in ppubs for:
(55/326.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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