Granted Patent
Utility
US 5,469,845 · App. 08/120,267
Disposable pulse oximeter sensor
Inventors:
Russell L. DeLonzor, Lee M. Middleman
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Sep 13, 1993
Inventors
Russell L. DeLonzor
Lee M. Middleman
Assignee (at issue)
Nellcor Incorporated
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.