Characterising dna
CA 2264581 C · Owner: Schmidt, Gunter · Inventors: Schmidt, Gunter; Thompson, Andrew Hugin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for characterising cDNA, which comprises: (a) cutting a sample comprising a population of one or more cDNAs or isolated fragments thereof each having a strand complementary to the 3' poly-A terminus of an mRNA and bearing a tail, with a first sampling endonuclease at a first sampling site of known displacement from a reference site proximal to the tail to generate from each cDNA or isolated fragment thereof a first and second sub-fragment each , comprising a sticky end sequence of predetermined length and unknown sequence the first sub-fragment bearing the tail; (b) sorting either the first or second sub-fragments into sub-populations according to their sticky end sequence …
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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 September 5, 1997 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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.