Vinyl polymers exhibiting nonlinear optical response
CA 2076459 A1 · Owner: Blatter, Karsten · Inventors: Blatter, Karsten; Shu, Ching Fong; Battito, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides novel vinyl polymers with pendant side chains which exhibit nonlinear optical response. The polymers have utility as a transparent optical media in optical devices. An invention vinyl polymer is illustrated by the acrylate copolymer of the following structure:,
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
- Filed August 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.