Granted Patent
Utility
US 6,672,307 · App. 10/214,033
Quick-donining full face oxygen mask with inflatable harness and soft foldable lens
Inventors:
Thomas K. McDonald, Gary R. Hannah, Randy G. Stratman, Gregory R. Jones
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Aug 7, 2002
Inventors
Thomas K. McDonald
Gary R. Hannah
Randy G. Stratman
Gregory R. Jones
Assignee (at issue)
BE Intellectual Property, Inc.
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.