Granted Patent
Utility
US 6,776,831 · App. 09/909,746
High temperature and high humidity release coating for polymer film
Inventors:
Divya Chopra, Benjamin Andrew Smillie, Theodore J. Lang
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jul 20, 2001
Inventors
Divya Chopra
Benjamin Andrew Smillie
Theodore J. Lang
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.