Granted Patent
Utility
US 5,728,289 · App. 08/730,673
Sensor cell holder for gas analyzer
Inventors:
Steve Kirchnavy, Robert D. Thompson
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Oct 11, 1996
Inventors
Steve Kirchnavy
Robert D. Thompson
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.