Granted Patent
Utility
US 4,728,318 · App. 07/007,255
Belt tensioner and method of making the same
Inventor:
Dewey D. Henderson
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Jan 27, 1987
Inventor
Dewey D. Henderson
Assignee (at issue)
Dayco Products, LLC
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.