Granted Patent
Utility
US 5,492,113 · App. 08/110,537
Sleep apnea treatment apparatus having multiple ramp cycles
Inventors:
Mark C. Estes, Janice M. Cattano, Douglas M. Mechlenburg
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Aug 23, 1993
Inventors
Mark C. Estes
Janice M. Cattano
Douglas M. Mechlenburg
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.