Granted Patent
Utility
US 5,537,997 · App. 08/484,526
Sleep apnea treatment apparatus and passive humidifier for use therewith
Inventors:
Douglas M. Mechlenburg, Steven A. Kimmel, John Fiore
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Jun 7, 1995
Inventors
Douglas M. Mechlenburg
Steven A. Kimmel
John Fiore
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.