Granted Patent
Utility
US 5,531,807 · App. 08/347,808
Apparatus and method for supplying oxygen to passengers on board aircraft
Inventor:
Norman R. McCombs
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Nov 30, 1994
Inventor
Norman R. McCombs
Assignee (at issue)
AirSep 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.