Granted Patent
Utility
US 6,247,471 · App. 09/350,230
Smoke hood with oxygen supply device and method of use
Inventors:
James W. Bower, Timothy James Hurley, Lawrence B. Bosquet, M. Russel Phinney
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Jul 8, 1999
Inventors
James W. Bower
Timothy James Hurley
Lawrence B. Bosquet
M. Russel Phinney
Assignee (at issue)
Essex PB&R 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.