Granted Patent
Utility
US 5,246,003 · App. 07/838,565
Disposable pulse oximeter sensor
Inventor:
Russell L. DeLonzor
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Feb 19, 1992
Inventor
Russell L. DeLonzor
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.