Granted Patent
Utility
US 4,135,611 · App. 05/764,223
Press drive clutch with brake
Inventor:
Edwin A. Spanke
Patented Case
View Patent ↗
Granted: Jan 23, 1979
Filed: Jan 14, 1977
Inventor
Edwin A. Spanke
Assignee (at issue)
Gulf Eastern Manufacturing Company
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.