Granted Patent
Utility
US 4,435,241 · App. 04/654,941
Method of extruding laminated film
Inventor:
Herbert O. Corbett
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: May 26, 1967
Inventor
Herbert O. Corbett
Assignee (at issue)
National Distillers and Chemical Corporation
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.