Granted Patent
Utility
US 4,463,429 · App. 06/295,686
Computer controlled apparatus for grain elevators
Inventors:
Donald P. DeVale, Howard B. Wilbrandt, Dennis E. Tomlinson, Ashish Shah
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Aug 24, 1981
Inventors
Donald P. DeVale
Howard B. Wilbrandt
Dennis E. Tomlinson
Ashish Shah
Assignee (at issue)
Industrial Design & Engineering Associates
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.