Granted Patent
Utility
US 4,796,633 · App. 06/748,485
Method and apparatus for in vitro calibration of oxygen saturation monitor
Inventor:
Lori J. Zwirkoski
Patented Case
View Patent ↗
Granted: Jan 10, 1989
Filed: Jun 25, 1985
Inventor
Lori J. Zwirkoski
Assignee (at issue)
American Hospital Supply Corp.
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.