Granted Patent
Utility
US 4,437,295 · App. 06/252,481
Automatic header height control
Inventor:
Merlin A. Rock
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Apr 8, 1981
Inventor
Merlin A. Rock
Assignee (at issue)
International Harvester 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.