Method for detection of viral rna
CA 2038839 A1 · Owner: Liu, Jiang J. · Inventors: Liu, Jiang J.; Cepica, Arnost
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a process for detecting an RNA virus in a sample, e.g. clinical, suspected of containing the virus. The process comprises treating the sample with heat for denaturing protein coating the RNA in the presence of a non-proteinaceous RNase enzyme inhibitor such as diethylpyrocarbonate (DEPC). RNA freed from the protein coat is protected from destructive RNase activity upon cooling of the sample by addition of a proteinaceous RNase inhibitor, such as RNadeTM or RNasinTM when the temperature of the sample is below the denaturation temperature for the inhibitor. RNA can then be detected, for example by reverse transcription (RT) to form cDNA and then applying the polymerase …
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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 March 22, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2013.
- 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.