Granted Patent
Utility
US 4,889,891 · App. 07/238,322
Novel rubber compounding resorcinolic resins
Inventors:
Bojayan Durairaj, Alex Peterson, Jr., Gideon Salee
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Aug 30, 1988
Inventors
Bojayan Durairaj
Alex Peterson, Jr.
Gideon Salee
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.