Granted Patent
Utility
US 4,047,445 · App. 05/724,592
Demand driven clutch
Inventor:
Conrad V. Anderson
Patented Case
View Patent ↗
Granted: Sep 13, 1977
Filed: Sep 20, 1976
Inventor
Conrad V. Anderson
Assignee (at issue)
Pako 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.