Nucleic acid labeling by thermoanaerobacter thermohydrosulfuricus dna polymerase i variants
CA 2469928 A1 · Owner: Palaniappan, Chockalingam · Inventors: Davis, Maria; Palaniappan, Chockalingam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An enzymatically active DNA polymerase or active fragment thereof having at , least 80 % identity in its amino acid sequence to the DNA polymerase of Thermoanaerobacter thermohydrosulfuricus or fragment thereof and having an , amino acid alteration at position 720 in Tts Pol I or at position 426 in .DELTA.Tts Pol I or at a homologous position defined with respect to Tts DNA polymerase I, having improved incorporation of nucleotide analogs and natural bases during DNA synthesis compared to unaltered enzyme.
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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 December 20, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 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.