USPC Class Details

Description: 222 dispensing / 222 dispensing/(638) including timer (639) for timing dispensing period (644) and means for timing the period between dispensing cycles (645) of aerosol dispenser (646) including electrical timing circuit (647) and mechanical timing element

Hierarchy/Derived subclasses

222 / 638

-> 639

-> 644

-> 645

-> 646

-> 647

-> 648

uspto searches

Patent Apps in 222/647

Granted Patents in 222/647

Use the links above or do an advanced search in ppubs for:
(222/647.ccls. or 222/648.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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