Granted Patent
Utility
US 4,175,650 · App. 05/776,676
Self-adjusting electromagnetic disc clutch
Inventor:
Donald L. Miller
Patented Case
View Patent ↗
Granted: Nov 27, 1979
Filed: Mar 11, 1977
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.