Granted Patent
Utility
US 5,970,975 · App. 08/677,320
Sleep apnea treatment apparatus
Inventors:
Mark C. Estes, Janice M. Cattano
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jul 2, 1996
Inventors
Mark C. Estes
Janice M. Cattano
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.