Protein- and peptide-metal ion pharmaceutical applications
CA 2127284 C · Owner: Rhomed Incorporated · Inventors: Zamora, Paul O.; Rhodes, Buck A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Peptides containing a biological-function domain and a medically useful metal ion-binding domain and proteins containing monosulfide or disulfide bonds are labeled with medically useful metal ions for use in diagnosis and treatment of a variety of pathologic conditions. The peptides have the amino acid sequence (R1)-Y1n- (R2), (R1)-Y1-(R2)-Y1n-(R3), and, (R1)-Y1-(R2)-Y2n-(R3) with the biological-function domain optionally containing the sequence IKVAV and YIGSR. The medically useful metal ion-binding domain is Y1n Y1-(R2)-Y1n or Y1-(R2)-, Y1n. Sn(II) agents are used to label the proteins with medically useful metal ions.
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
- Filed December 31, 1992 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 2014.
- 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.