Granted Patent
Utility
US 6,820,701 · App. 10/285,835
Visual probes and methods for placing visual probes into subsurface areas
Inventors:
Don Clark, Eugene E. Erickson, William L. Casper, David M. Everett
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Nov 1, 2002
Inventors
Don Clark
Eugene E. Erickson
William L. Casper
David M. Everett
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.