Granted Patent
Utility
US 4,873,474 · App. 07/341,431
Winch with shut-off load limiter
Inventor:
Richard Johnson
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Apr 20, 1989
Inventor
Richard Johnson
Assignee (at issue)
Warn Industries, 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.