Granted Patent
Utility
US 6,828,383 · App. 10/369,366
Phenolic modified resorcinolic resins for rubber compounding
Inventors:
Raj B. Durairaj, C. Michael Walkup, Mark A. Lawrence
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Feb 18, 2003
Inventors
Raj B. Durairaj
C. Michael Walkup
Mark A. Lawrence
Assignee (at issue)
Occidental Petroleum
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.