Granted Patent
Utility
US 4,240,782 · App. 06/085,656
Extruder head for making elastomer-fiber composite hose
Inventors:
Donald J. McPhee, Herbert W. Gray
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Oct 17, 1979
Inventors
Donald J. McPhee
Herbert W. Gray
Assignee (at issue)
The Gates Rubber Company
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.