Granted Patent
Utility
US 5,959,031 · App. 08/828,919
Polyamide release film for use in the production of molded composite products
Inventor:
Christopher Paul Thurgood
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Mar 28, 1997
Inventor
Christopher Paul Thurgood
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.