USPC Class Details

Description: 137 fluid handling / 137 fluid handling/(67) destructible or deformable element controlled (72) heat destructible or fusible (75) safety cut-off (77) with external closing means

Hierarchy/Derived subclasses

137 / 67

-> 72

-> 75

-> 77

uspto searches

Patent Apps in 137/77

Granted Patents in 137/77

Use the links above or do an advanced search in ppubs for:
(137/77.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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