Granted Patent
Utility
US 6,540,175 · App. 09/997,654
System for clearing buried and surface mines
Inventors:
Joseph R. Mayersak, Lance Benedict, Robert M. Krass
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Dec 3, 2001
Inventors
Joseph R. Mayersak
Lance Benedict
Robert M. Krass
Assignee (at issue)
LOCKHEED MARTIN CORPORATION
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.