Granted Patent
Utility
US 4,734,086 · App. 05/697,089
Endless power transmission belt structure
Inventors:
David G. Fisher, Billy L. Speer
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Jun 16, 1976
Inventors
David G. Fisher
Billy L. Speer
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.