Granted Patent
Utility
US 5,937,855 · App. 08/466,582
Flow regulating valve in a breathing gas delivery system
Inventors:
Ronald J. Zdrojkowski, Frank V. Blazek, John Raymond Pujol
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Jun 6, 1995
Inventors
Ronald J. Zdrojkowski
Frank V. Blazek
John Raymond Pujol
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.