Granted Patent
Utility
US 4,227,601 · App. 05/857,290
Centrifugal clutch
Inventor:
Edward J. Pilatowicz
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: Dec 5, 1977
Inventor
Edward J. Pilatowicz
Assignee (at issue)
McCulloch 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.