Granted Patent
Utility
US 6,758,212 · App. 10/177,770
Personal emergency breathing system
Inventor:
Linsey J. Swann
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Jun 24, 2002
Inventor
Linsey J. Swann
Assignee (at issue)
Brookdale International Systems, 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.