USPC Class Details

Description: 53 package making / 53 package making/(128.1) with cover-adjunct application or formation (133.1) adjunct comprising provision to allow access to contents, e.g., spout, straw, drain, opening, etc. (133.3) adjunct comprising provision to open package (133.5) tear string or tape under cover

Hierarchy/Derived subclasses

53 / 128.1	-> 133.1	-> 133.3	-> 133.5	-> 133.6
				-> 133.7

uspto searches

Patent Apps in 53/133.5

Granted Patents in 53/133.5

Use the links above or do an advanced search in ppubs for:
(53/133.5.ccls. or 53/133.6.ccls. or 53/133.7.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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