Granted Patent
Utility
US 6,035,786 · App. 08/956,259
Miniature pipe crawler tractor
Inventors:
Mark D. McKay, Matthew O. Anderson, Todd Ferrante, W. David Willis
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Oct 22, 1997
Inventors
Mark D. McKay
Matthew O. Anderson
Todd Ferrante
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.