Granted Patent
Utility
US 5,169,696 · App. 07/786,581
Film laminate with easy TD tear
Inventors:
Theodore J. Lang, Kevin Bergevin
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Nov 1, 1991
Inventors
Theodore J. Lang
Kevin Bergevin
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.