Granted Patent
Utility
US 5,133,437 · App. 07/646,918
Wrap spring clutch with brake
Inventor:
George Larson
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: Jan 28, 1991
Inventor
George Larson
Assignee (at issue)
Reell Precision Manufacturing 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.