Chemiluminescent method and apparatus for the detection of ozone
CA 1113844 A · Owner: The Government Of The United States As Represented By The Secretary Of T He Army · Inventors: Randhawa, Jagir S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ozone may be detected in the upper atmosphere by the ozonesonde of the subject invention. The inventive ozonesonde directs an ambient air flow in a continuous stream over a chemiluminescent disc, which reacts with the ozone to produce oxygen and light. The intensity of the light is detected and measured as an indicator of the ozone concentration. The air flow is exited from the instrument thereby allowing a maximum quantity of air to be sampled for a more accurate determination of the ozone concentration.
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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 December 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 1998.
- 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
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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.