High-fidelity dna sequencing using solid phase capturable dideoxynucleotides and mass spectrometry
CA 2442862 A1 · Owner: Li, Zengmin · Inventors: Ju, Jingyue; Edwards, John Robert; Li, Zengmin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides methods for sequencing DNA by detecting the identity of a nucleotide within a DNA sequencing fragment using mass spectrometry. The invention provides cleavable linkers for attaching a label to a dideoxynucleotide and provides labeled dideoxynucleotides. The invention also provides methods for increasing mass spectrometry resolution using linkers with different mass. The invention further provides systems for separating a labeled moiety from non-labeled components in one or more samples in solution.
Read the whole patent
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 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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
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.