Passive internal references for the detection of nucleic acid amplification products
CA 2256457 C · Owner: Pe Corporation (Ny) · Inventors: Mcbride, Lincoln J.; Livak, Kenneth J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to passive internal references for use in quantitating the formation of amplification products in a nucleic amplification reaction. The internal amplification reference molecules of the invention comprise a first and second fluorophore joined together through a backbone connector. The first and second fluorophores are joined on the backbone in a configuration that permits the energy transfer from the first fluorophore to the second fluorophore. The backbone connector is selected so as not to bind to the target nucleic acid sequence under nucleic acid amplification conditions. Preferably, the backbone connector is a polynucleotide. Another aspect of the …
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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 June 3, 1997 and granted October 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2019.
- 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.