Granted Patent
Utility
US 6,227,197 · App. 09/477,986
Gas supplying and substance suctioning relative to a patients trachea
Inventor:
Peter Fitzgerald
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Jan 5, 2000
Inventor
Peter Fitzgerald
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.