Granted Patent
Utility
US 5,387,645 · App. 08/168,873
Polyphthalamide composition
Inventors:
Ruth A. Montag, George A. Corbin
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Dec 16, 1993
Inventors
Ruth A. Montag
George A. Corbin
Assignee (at issue)
Amoco 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.