Granted Patent
Utility
US 5,030,692 · App. 07/452,979
Rubber compounding resorcinolic resins and process for making the same
Inventor:
Bojayan Durairaj
Patented Case
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Granted: Jul 9, 1991
Filed: Dec 19, 1989
Inventor
Bojayan Durairaj
Assignee (at issue)
Indspec Chemical Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.