USPC Class Details

Description: 523 synthetic resins or natural rubbers -- part of the class 520 series / 523 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (1) processes of preparing a desired or intentional composition of at least one nonreactant material and at least one solid polymer or specified intermediate condensation product, or product thereof (400) process of forming a composition containing a nonreactive material (nrm) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof (402) product contains water per se or water of hydration as designated nonreactive material (dnrm) (406) solid polymer derived from ethylenic reactants only (includes in situ reactants from plural 1,2-epoxides) (407) polymer derived from ethylenic reactants only is graft, graft-type, block, or block-type copolymer

Hierarchy/Derived subclasses

523 / 1-> 400-> nrm-> 402-> dnrm-> 406-> 407

uspto searches

Patent Apps in 523/407

Granted Patents in 523/407

Use the links above or do an advanced search in ppubs for:
(523/407.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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