Granted Patent
Utility
US 4,609,965 · App. 06/669,683
Magnetic clutch
Inventor:
William A. Baker
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Nov 9, 1984
Inventor
William A. Baker
Assignee (at issue)
PT Components, Inc.
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.