Substituted metal-phthalocyanines, their preparation and the use thereof
CA 2412750 C · Owner: Dei, Donata · Inventors: De Filippis, Maria Paola; Fantetti, Lia; Jori, Giulio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to metal-phthalocyanines of general formula (I) to the corresponding conjugates, the processes for their preparation and use in the photodynamic therapy of microbial infections (viral bacterial and , mycotic), tumor, pre-cancerous and proliferative pathologies and/or in the diagnosis, as well as for blood and blood derivatives sterilization.
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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 June 11, 2001 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2023.
- 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.