Methods for isolating nucleic acids
CA 2482097 C · Owner: Kirchgesser, Michael · Inventors: Bergmann, Frank; Weindel, Kurt; Zielenski, Ralf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The problem underlying the present invention is to provide an alternative method for the chromatographic purification of a nucleic acid using alternative substances in the aequous adsorption solution in order to facilitate the binding of nucleic acids to a substrate such as a mineral support. A method is provided for the purification of a nucleic acid comprising the steps of: a) adsorbing on a substrate the nucleic acid from a composition containing (i) an aequous buffer (ii) salts in a high concentration and (iii) a water-miscible non-acidic organic compound and (iv) the nucleic acid; b) optionally washing with a washing solution the substrate with the adsorbed nucleic acid followed by c) …
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 September 20, 2004 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2026.
- 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.