Method of purifying nucleic acid using nonwoven fabric and detection method
CA 2452605 A1 · Owner: Sato, Akiko · Inventors: Kanno, Kimiyoshi; Sato, Akiko; Aritomi, Masaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of separating and purifying a nucleic acid from a sample containing cells such as blood or a liquid culture medium. In this method a cell extract , obtained by disrupting cell is adsorbed by a filter made of a nonwoven fabric and, after washing the filter, the nucleic acid is eluted therefrom. The nucleic acid may be eluted under alkaline conditions (pH 12 or higher). It is also possible to elute the nucleic acid by treating the nucleic acid adsorbed by the filer with active oxygen or using a surfactant. Nucleic acids separated and purified by the above method are usable in nucleic acid amplification or base sequence analysis techniques.
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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 July 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2024.
- 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.