Anti-thrombin polypeptides
CA 2061920 A1 · Owner: Farmitalia Carlo Erba S.R.L. · Inventors: Scacheri, Emanuela; Nitti, Giampaolo; Sarmientos, Paolo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: Anti-thrombin polypeptides The present invention relates to anti-thrombin polypeptides isolated from the leech Hirudinaria manillensis and to processes for their preparation. The polypeptides of the invention may be modified by way of amino acid extension at either or each end and may be, subjected to post-translational modification. The anti-thrombin polypeptides may be prepared by isolating them from the tissue or secretions of the leech Hirudinaria manillensis but they also may be synthetized by recombinant DNA methods. According to this latter aspect the invention provides DNA, sequences, expression vectors and host cell lines for the recombinant preparation of the polypeptides. …
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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 26, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.