Granted Patent
Utility
US 6,192,813 · App. 09/455,154
Apparatus for controlling the flow rate of an air seeder
Inventors:
Russell J. Memory, Robert K. Benneweis, Neil D. Klassen, Robert J. Wilson, James Wilson
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Dec 6, 1999
Inventors
Russell J. Memory
Robert K. Benneweis
Neil D. Klassen
Robert J. Wilson
James Wilson
Assignee (at issue)
Flexi-Coil Ltd.
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.