Granted Patent
Utility
US 4,192,525 · App. 05/944,708
Steering sulky for two-wheel tractors
Inventor:
John Clark
Patented Case
View Patent ↗
Granted: Mar 11, 1980
Filed: Sep 22, 1978
Inventor
John Clark
Assignee (at issue)
Clarke-Gravely Corporation
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.