Granted Patent
Utility
US 5,542,416 · App. 08/370,636
Apparatus for assisting ventilation including reduced exhalation pressure mode
Inventor:
Philippe Auguste Chalvignac
Patented Case
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Granted: Aug 6, 1996
Filed: Jan 10, 1995
Inventor
Philippe Auguste Chalvignac
Assignee (at issue)
Societe d'Applications Industrielles Medicales et Electronique (Saime)
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.