Electromagnetic radiation detector with large area sensing medium
CA 1087286 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Taylor, Allen L.; Ensign, Thomas C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sensing device is provided for the detection of electromagnetic radiation through the use of a large area (i.e. 1 sq. cm and larger) pyroelectric/piezoelectric sensing medium. The detection operation of the sensing device is constructed to ignore spurious detection indications due to bending or compression of the sensing medium. In a preferred embodiment the sensing device is formed from a two housing construction that includes outer and inner housings. The outer housing of the device includes an infrared transmissive window at one end. To substantially physically isolate the two housings from one another the inner housing of the device, is supported inside the outer housing by means of …
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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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
- 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.