Granted Patent
Utility
US 4,999,983 · App. 07/467,617
Corn harvester
Inventors:
Donald B. Britt, Steven S. Dow
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Jan 19, 1990
Inventors
Donald B. Britt
Steven S. Dow
Assignee (at issue)
Byron Enterprises, 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.