Sensor for gases or ions
CA 1283725 C · Owner: Dohnke, Karl O. · Inventors: Winnacker, Albrecht; Dohnke, Karl O.; Stich-Baumeister, Eva-Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sensor for gases or ions with a light source a, detector and a sensor layer all of which are attached to a carrier. A thin sensor film, the absorptivity of which changes through the action of the measurement medium is arranged on a, light waveguide, the one flat side of which covers a flat end face of the light source, the end face of the carrier and a plane receiving surface of the detector. Thus a sensitive, sensor, especially for gases is obtained in which the sensor, layer the light source and the detector form an integrated structural unit.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.