Method and composition for stabilization of labelled nucleoside triphosphates
CA 2210900 C · Owner: Burazin, Lawrence J. · Inventors: Brush, Charles K.; Freeman, Mark E.; Burazin, Lawrence J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A preparation of a labelled nucleotide comprising at least one compound having a Mg2+ association constant between 1x10-11 to 1x10-2 inclusive. The compound , is preferably selected from the group consisting of citrate isocitrate, phosphate, EGTA, EDTA, and CDTA. The concentration of the compound is preferably at least 5 mM.
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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 January 5, 1996 and granted June 6, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2018.
- 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.