Granted Patent
Utility
US 5,996,580 · App. 09/003,357
Personal emergency breathing system with locator for supplied air respirators and shock resistant filter mounting
Inventor:
Linsey J. Swann
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Jan 6, 1998
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.