Granted Patent
Utility
US 4,703,085 · App. 06/895,990
Impact modifier for imide containing copolymers
Inventor:
Barry D. Dean
Patented Case
View Patent ↗
Granted: Oct 27, 1987
Filed: Aug 14, 1986
Inventor
Barry D. Dean
Assignee (at issue)
Atlantic Richfield Company
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.