Granted Patent
Utility
US 4,241,818 · App. 05/956,134
Lightweight electromagnetic clutch with shock absorber
Inventor:
Donald L. Miller
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Oct 30, 1978
Inventor
Donald L. Miller
Assignee (at issue)
Facet Enterprises, Incorporated
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.