Granted Patent
Utility
US 4,464,147 · App. 06/321,369
Belt tensioner and method of making the same
Inventor:
Randy C. Foster
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Nov 16, 1981
Inventor
Randy C. Foster
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.