Granted Patent
Utility
US 4,778,737 · App. 06/760,367
Compositions of polymers in alkaline media
Inventor:
Eugene J. Sehm
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Jul 30, 1985
Inventor
Eugene J. Sehm
Assignee (at issue)
B. F. Goodrich 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.