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Expired Canadian patentCanada

Method of mass spectrometry

CA 2482095 C · Owner: Micromass Uk Limited · Inventors: Leicester, Steve

CIPO record

Overview

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Abstract From the Canadian patent

A method of identifying post-translationally modified proteins is disclosed. The method comprises mass analysing peptide ions and then subtracting from the determined mass of the peptide ion the known increase in mass due to one or more modifications of interest. The resulting value which represents the mass a peptide would have had the protein from which it is derived hot been modified is then used to search against a peptide databank. A short list of possible peptides is formed by selecting peptides which have both the right mass or mass to charge ratio (to within a user specified tolerance) and which also support at least one of the user selected modifications of interest. Each short …

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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 22, 2004 and granted November 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 22, 2004
GrantedNovember 5, 2013
Term endedSeptember 22, 2024
Patent numberCA 2482095 C
Classification (IPC)G01N33/68 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 22, 2004Patent grantedNov 5, 2013Term endedSep 22, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.