Granted Patent
Utility
US 5,806,214 · App. 08/779,882
Support wheels mounted in the vicinity of the center of gravity of a snowplow
Inventors:
John Robert Behrens, James R. Doornek, Gerald E. Lutzke
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Jan 6, 1997
Inventors
John Robert Behrens
James R. Doornek
Gerald E. Lutzke
Assignee (at issue)
Douglas Dynamics, L.L.C.
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.