Granted Patent
Utility
US 4,376,609 · App. 06/135,949
Automatic spout control for agricultural machines
Inventors:
Carl E. Bohman, Hugh C. Maguire, Bradley J. Thompson
Patented Case
View Patent ↗
Granted: Mar 15, 1983
Filed: Mar 31, 1980
Inventors
Carl E. Bohman
Hugh C. Maguire
Bradley J. Thompson
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.