Granted Patent
Utility
US 5,429,129 · App. 08/149,011
Apparatus for determining spectral absorption by a specific substance in a fluid
Inventors:
David Anthony Lovejoy, Robert L. Young, Bert D. Heinzelman
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Nov 8, 1993
Inventors
David Anthony Lovejoy
Robert L. Young
Bert D. Heinzelman
Assignee (at issue)
Sensor Devices, 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.