Granted Patent
Utility
US 4,294,342 · App. 06/118,502
Centrifugal clutch construction
Inventor:
Richard C. St. John
Patented Case
View Patent ↗
Granted: Oct 13, 1981
Filed: Feb 4, 1980
Inventor
Richard C. St. John
Assignee (at issue)
Dyneer Corporation
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.