Granted Patent
Utility
US 5,794,615 · App. 08/679,898
Method and apparatus for providing proportional positive airway pressure to treat congestive heart failure
Inventor:
Mark C. Estes
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Jul 15, 1996
Inventor
Mark C. Estes
Assignee (at issue)
Respironics, Inc.
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.