Granted Patent
Utility
US 6,095,138 · App. 09/078,018
Portable respiration apparatus, and system employing same
Inventors:
Kurt Hognelid, Georgios Psaros
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: May 13, 1998
Inventors
Kurt Hognelid
Georgios Psaros
Assignee (at issue)
Siemens Elema AB
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.