Method of manufacturing an nlo-active device
CA 2086084 A1 · Owner: Horsthuis, Winfried Henri Gerard · Inventors: Horsthuis, Winfried Henri Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Manufactured is a non-linear optically active (NLO) device, an optical waveguiding structure being formed which comprises at least a layer of an NLO polymer containing hyperpolarizable groups, and the NLO polymer being exposed with heating, to an electric field for poling of the hyperpolarizable groups, the heating being by contacting the NLO polymer with a thermal energy generating live electric conductor (a resistor wire). Preferably the live electric, conductor also functions as electrode when generating the electric field with which the hyperpolarizable groups are poled. The invention further relates to a device comprising an optical waveguiding structure and electrodes for …
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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 December 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2014.
- 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.