USPC Class Details

Description: 65 glass manufacturing / 65 glass manufacturing/(483) fiber making apparatus (521) centrifuge with fiberizing holes (e.g., rotor, etc.)

Hierarchy/Derived subclasses

65 / 483-> 521-> 522-> 523

uspto searches

Patent Apps in 65/521

Granted Patents in 65/521

Use the links above or do an advanced search in ppubs for:
(65/521.ccls. or 65/522.ccls. or 65/523.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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