Process for lysing mycobacteria
CA 2135271 C · Owner: Becton, Dickinson And Company · Inventors: Walker, G. Terrance; Fraiser, Melinda S.; Down, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for lysing Mycobacteria to liberate nucleic acids such as DNA and RNA comprises heating the Mycobacteria in an aqueous solution to lyse the Mycobacteria and release the nucleic acids with the, aqueous solution containing a chelating agent such as EDTA or EGTA in an amount effective to inhibit degradation of the released nucleic acids. Examples of Mycobacteria which can be lysed include Mycobacterium fortuitum and Mycobacterium tuberculosis. After lysis the nucleic acid is preferably then amplified and detected. Kits useful for carrying out the present invention are also disclosed.
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 November 7, 1994 and granted October 21, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2016.
- 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.