Granted Patent
Utility
US 4,985,102 · App. 07/506,148
Method of making fiber reinforced polyamide sheets
Inventors:
James J. Chatsick, Peter Sipos
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Apr 9, 1990
Inventors
James J. Chatsick
Peter Sipos
Assignee (at issue)
DuPont Canada Inc.
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.