Granted Patent
Utility
US 6,452,163 · App. 09/866,642
Armored detector having explosion proof enclosure
Inventors:
Larry D. Frederick, Dwight Medley
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: May 30, 2001
Inventors
Larry D. Frederick
Dwight Medley
Assignee (at issue)
Geosteering Mining Services, 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.