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Class Information
Number: 520
Name: Synthetic resins or natural rubbers -- part of the class 520 series >
Description: Class 520, Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series is to be considered as an integral part of Class 260 and retains all pertinent definitions and class lines of Class 260. Class 520, subclass 1 is the generic subclass for synthetic resins or natural rubbers. All the other classes of the 520 series (i.e., 521,522, 523, 524, 525, 526, 527, and 528) are indented thereunder.

Class Number Class Name No. of Patents

Synthetic resins or natural rubbers

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