Granted Patent
Utility
US 3,989,868 · App. 05/582,031
Transmission belts
Inventors:
Richard Bell, Takao Sato, Chitta Ranjan Lahiri, Thomas G. Carver
Patented Case
View Patent ↗
Granted: Nov 2, 1976
Filed: May 29, 1975
Inventors
Richard Bell
Takao Sato
Chitta Ranjan Lahiri
Thomas G. Carver
Assignee (at issue)
Uniroyal Ltd.
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.