Granted Patent
Utility
US 5,937,853 · App. 08/743,738
Ventilator for respiratory treatment
Inventor:
Christer Strom
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Nov 6, 1996
Inventor
Christer Strom
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.