Improvements in, or relating to, infra-red detection
CA 2368989 C · Owner: Weaver, Ian · Inventors: Etienne, Steven; Weaver, Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for analysing a material using infra-red radiation are described, along with an infra-red detector for use with the system and the method. The system (10) comprises a rectangular housing (42) to which an elongated probe (24) is attached, and includes the following parts: a spectrometer (12), an infra-red detector (14) first and second optical fibre , bundles (16 18), first and second converging lenses (20 22), collimating , lens (26), infra-red source (28) attenuated total reflectance element (44) and chopper (54). The infra-red detector includes an array of detector elements formed on the lower surface of a layer of pyroelectric copolymer material which is …
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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
- Filed April 10, 2000 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2022.
- 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.