Granted Patent
Utility
US 6,718,975 · App. 10/171,340
Method of assessing pulmonary stress and a breathing apparatus
Inventor:
Urban Blomberg
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jun 12, 2002
Inventor
Urban Blomberg
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.