Granted Patent
Utility
US 4,461,306 · App. 06/502,863
Combine harvesters
Inventor:
Cyriel R. J. De Busscher
Patented Case
View Patent ↗
Granted: Jul 24, 1984
Filed: Jun 9, 1983
Inventor
Cyriel R. J. De Busscher
Assignee (at issue)
Sperry Corp.
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.