Granted Patent
Utility
US 4,319,476 · App. 05/926,164
Methods and apparatus for extrusion
Inventor:
Francis J. Fuchs, Jr.
Patented Case
View Patent ↗
Granted: Mar 16, 1982
Filed: Jul 19, 1978
Inventor
Francis J. Fuchs, Jr.
Assignee (at issue)
Western Electric 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.