Granted Patent
Utility
US 6,607,834 · App. 09/801,345
Polyester-containing biaxially-oriented polypropylene films
Inventors:
Alan M. Davis, John Lawrence, Tung-Yao Weng
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Mar 7, 2001
Inventors
Alan M. Davis
John Lawrence
Tung-Yao Weng
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.