Granted Patent
Utility
US 4,888,939 · App. 07/240,863
Belt driven disc cutterbar
Inventor:
Jack W. Crane
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Sep 2, 1988
Inventor
Jack W. Crane
Assignee (at issue)
Ford New Holland, 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.