Granted Patent
Utility
US 4,596,538 · App. 06/643,504
Belt tensioner
Inventor:
Dewey D. Henderson
Patented Case
View Patent ↗
Granted: Jun 24, 1986
Filed: Aug 23, 1984
Inventor
Dewey D. Henderson
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.