Peptide and adsorbent thereof immobilized on carrier
CA 2026881 A1 · Owner: Kuraray Co. Ltd. · Inventors: Tanihara, Masao; Oka, Kiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The present invention provides a peptide capable of binding to interleukin 6, represented by the general formula: H-X-A-Y-Z (I), wherein A is a peptide segment formed by binding 6 to 50 amino acids; each of X and Y is a single bond or an amino acid residue selected from the group consisting of Asp Glu, Lys, Ala and a divalent group of the formula: -NH(CH2)n-CO- (wherein n is an integer of 1 to 17), or a peptide segment composed of 2 to 10 amino acid residues selected from the above group which are bound to each other through a peptide bond; Z is a hydroxyl group or an amino group. The invention further provides an adsorbent for interleukin 6 comprising the peptide immobilized on a …
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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 February 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2012.
- 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.