Granted Patent
Utility
US 6,435,291 · App. 09/761,457
Suspension and drive mechanism for multi-surface vehicle
Inventors:
Gary E. Lemke, Brad Lemke, Cary Safe, Edgar Hetteen
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Jan 16, 2001
Inventors
Gary E. Lemke
Brad Lemke
Cary Safe
Edgar Hetteen
Assignee (at issue)
A.S.V., LLC
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.