Diagnostic preparations and their use
CA 1256249 A · Owner: Schering Aktiengesellschaft · Inventors: Gries, Heinz; Weinmann, Hanns-Joachim; Rosenberg, Douwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Diagnostic Preparations and their Use. A diagnostic preparation which comprises (i) a physiologically tolerable complex salt which contains (a) a central element selected from elements having atomic numbers of from 21 to 29, 42, 44 and from 57 to 83, and (b) a radical of a physiologically-tolerable complex-forming acid and, if desired, (c) a radical selected from radicals of inorganic and organic bases and amino acids, and (ii) a physiologically tolerable carrier; also methods for the manufacture of such diagnostic preparations, and their use in a method of diagnosis using NMR, X-ray and ultra-sound.
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 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.