Electroactive materials and beneficial agents having a solublizing moiety
CA 2389968 C · Owner: Guarr, Thomas F. · Inventors: Giri, Punam; Baumann, Kelvin L.; Lomprey, Jeffrey R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrochromic medium (124) for use in an electrochromic device (100) comprising a substrate (112) having a front and rear surface (112a and 112b) a second substrate (114) having a front and rear surface (114a and 114b) and , a chamber (116), substrates that may be coated with electrically conductive materials (118 and 120) having a bonding sealing member (122) at least one , solvent at cathodic electroactive material an anodic electoactive material, an optional beneficial agent where at least one of the cathodic electroactive material, anodic electroactive material and/or beneficial agent is associated with a solubizing moiety which serves to increase solubility of the associated …
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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 1, 2000 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.