Granted Patent
Utility
US 4,757,673 · App. 06/890,365
Adjustment of crop dividers
Inventor:
Charles Gayman
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Jul 29, 1986
Inventor
Charles Gayman
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.