Aminocarboxylic acid complexes for the treatment of calcific tumors
CA 1270845 C · Owner: The Dow Chemical Company · Inventors: Wilson, David A.; Goeckeler, William F.; Volkert, Wynn A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Particle-emitting radionuclides e.g. Samarium-, -153, have been complexed with aminocarboxylic acid derivatives having at least one of the amine hydrogens replaced by a carboxyalkyl radical. The complexes have log of stability constant (Log K) from 13 to 20. Physiologically acceptable salts of these complexes are also contemplated by these complexes. These complexes are useful in the treatment of calcific tumors. These complexes have been found useful in the treatment of calcific tumors in animals. 33,173A-F
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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
- Granted June 26, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 26, 2007.
- 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.