Granted Patent
Utility
US 4,095,479 · App. 05/706,763
Expansible pulley with torque and centrifugal response
Inventor:
John P. Lundberg
Patented Case
View Patent ↗
Granted: Jun 20, 1978
Filed: Jul 19, 1976
Inventor
John P. Lundberg
Assignee (at issue)
Scorpion, 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.