Granted Patent
Utility
US 5,098,940 · App. 07/496,944
Crystalline polyphthalamide composition having improved properties
Inventor:
Gary T. Brooks
Patented Case
View Patent ↗
Granted: Mar 24, 1992
Filed: Mar 21, 1990
Inventor
Gary T. Brooks
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.