Granted Patent
Utility
US 6,344,174 · App. 09/290,792
Gas sensor
Inventors:
James Brooks Miller, Joseph D. Jolson
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Apr 12, 1999
Inventors
James Brooks Miller
Joseph D. Jolson
Assignee (at issue)
Mine Safety Appliances Company, 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.