Granted Patent
Utility
US 4,569,489 · App. 06/604,600
Cable tension control device
Inventors:
George R. Frey, Ronald K. Dickey, Daryl A. Bleakley, John Willison
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Apr 27, 1984
Inventors
George R. Frey
Ronald K. Dickey
Daryl A. Bleakley
John Willison
Assignee (at issue)
Joy 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.