Granted Patent
Utility
US 6,074,731 · App. 08/709,826
Biaxially oriented polypropylene films with improved cold seal receptive surfaces
Inventor:
Andrew F. Wilkie
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Sep 10, 1996
Inventor
Andrew F. Wilkie
Assignee (at issue)
Applied Extrusion Technologies, 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.