USPC Class Details

Description: 383 flexible bags / 383 flexible bags/(42) with closure (43) self-closing type (44) responsive to content (e.g., valve) (57) closure includes inwardly folded bag wall portions

Hierarchy/Derived subclasses

383 / 42

-> 43

-> 44

-> 57

uspto searches

Patent Apps in 383/57

Granted Patents in 383/57

Use the links above or do an advanced search in ppubs for:
(383/57.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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