Granted Patent
Utility
US 6,416,833 · App. 09/135,187
Interpolymer film pouch
Inventors:
David Climenhage, Anthony Chow
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Aug 17, 1998
Inventors
David Climenhage
Anthony Chow
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.