Granted Patent
Utility
US 4,473,993 · App. 06/498,377
Cutting angle adjustment mechanism for crop harvesting machines
Inventors:
Richard E. Jennings, Delmar C. Harer
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: May 26, 1983
Inventors
Richard E. Jennings
Delmar C. Harer
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.