Methods of detecting collagen degradation in vivo
CA 2031265 C · Owner: Eyre, David R. · Inventors: Eyre, David R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods of determining collagen degradation in viro by quantitating the, concentration of a peptide in a body fluid the peptide being a C-terminal type II collagen telopeptide containing a hydroxylysyl pyridinoline cross-line or a type III collagen telopeptide containing a hydroxylysyl pyridinoline cross-link. Suitablemethods include immunometric assays fluorometric assays, and electrochemical titrations for quantitation. The structures of specific peptides having cross-links and kits for quantitating these peptides in a body fluid are described.
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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 November 30, 1990 and granted April 22, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 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
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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.