Granted Patent
Utility
US 6,269,813 · App. 09/232,277
Tracheal gas insufflation bypass and phasic delivery system and method
Inventors:
Peter Fitzgerald, Jeffrey T. Sawyer, Michael V. Weadley
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Jan 15, 1999
Inventors
Peter Fitzgerald
Jeffrey T. Sawyer
Michael V. Weadley
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.