Process for preparing polynucleotides, product thus obtaines and pharmaceutical preparations containing the same
CA 1339911 C · Owner: Colote, Acaye Soudhir · Inventors: Colote, Acaye Soudhir; Chabrier De Lassauniere, Pierre-Etienne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a preparation process of polymers of nucleotides wherein a bacteria strain culture lysate is passed successively through three columns (ion exchange resin, hydrophobic resin and molecular sieve), whereby there is obtained a substantially pure polynucleotidephosphorylase solution. Further polymerisation by this agent leads to non toxic and non pyrogen products. This invention relates also to products thus obtained and to therapeutic compositions containing the same.
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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
- Granted June 16, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2015.
- 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.