Granted Patent
Utility
US 4,617,075 · App. 06/658,832
Method of making a belt
Inventors:
Robert E. Wetzel, Richard L. Marsh
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Oct 9, 1984
Inventors
Robert E. Wetzel
Richard L. Marsh
Assignee (at issue)
DayCo Holdings, LP
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.