Granted Patent
Utility
US 4,444,841 · App. 06/406,581
Extruded AES film
Inventor:
Robert D. Wheeler
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Aug 9, 1982
Inventor
Robert D. Wheeler
Assignee (at issue)
Uniroyal Ltd.
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.