Granted Patent
Utility
US 5,407,979 · App. 08/058,989
Biodegradable film and method of making same
Inventors:
Pai-Chuan Wu, Gene W. Palmer, Wendell R. High
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: May 6, 1993
Inventors
Pai-Chuan Wu
Gene W. Palmer
Wendell R. High
Assignee (at issue)
Clopay Plastic Products Company, 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.