Granted Patent
Utility
US 4,882,492 · App. 07/145,459
Non-invasive near infrared measurement of blood analyte concentrations
Inventor:
Kenneth J. Schlager
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Jan 19, 1988
Inventor
Kenneth J. Schlager
Assignee (at issue)
Biotronics, 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.