Metal tri and tetrasulfonated phthalocyanines
CA 1256859 A · Owner: Universite De Sherbrooke · Inventors: Van Lier, Johannes E.; Autenrieth, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed novel lanthanides complexes of tri- and tetrasulfonated phthalocyanines for causing necrosis of tumor by administration thereof and exposure to red light and also to an aluminum or salt thereof complex of tri- and tetrasulfonated phthalocyanine injectable composition for the same purpose.
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
- Granted July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 2006.
- 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.