Granted Patent
Utility
US 5,743,253 · App. 08/588,684
Method and apparatus for maintaining a defined respiratory gas flow pattern to a subject by identifying a transfer function of the connection system
Inventors:
Rolf Castor, Göran Cewers, Rolf Wernbro, Magnus Nord
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Jan 19, 1996
Inventors
Rolf Castor
Göran Cewers
Rolf Wernbro
Magnus Nord
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.