IP Library › Granted Patent US 5,233,194
Granted Patent Utility
US 5,233,194 · App. 07/816,987

Optical gas sensor with enriching polymer

Inventors: Ganapati Mauze, Damien F. Gray
Patented Case View Patent ↗
Granted: Aug 3, 1993 Filed: Jan 3, 1992
Inventors
Ganapati Mauze
Damien F. Gray
Assignee (at issue)
Hewlett-Packard Company, L.P.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,233,194
App. No.
07/816,987
Filed
1992-01-03
Granted
1993-08-03
Kind
A