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Class Information
Number: 527/101
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From reactant which is a cellular material derived from plant or animal source and is other than diatomaceous earth, blood, cotton, or farinaceous flour, e.g., citrus pulp, walnut shell flour, etc. > Animal derived, e.g., hair, leather, horn, etc.
Description: Subject matter wherein the reactant is a cellular material derived from an animal source, e.g., hair, leather, fur, horn, etc.
Sub-classes under this class:
Patents under this class:
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