Granted Patent
Utility
US 6,089,339 · App. 09/025,822
Drive reconfiguration mechanism for tracked robotic vehicle
Inventor:
W. David Willis
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Feb 18, 1998
Inventor
W. David Willis
Assignee (at issue)
Bechtel BWXT Idaho, 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.