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Canadian application, no grantCanada

Use of lectin library for distinguishing glycoproteins or cells, diagnosing serum or cells, or fractionating glycoproteins or cells

CA 2495336 A1 · Owner: Matsumoto, Mariko · Inventors: Komatsu, Kunimitsu; Matsumoto, Mariko; Maenuma, Keisuke

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

It is intended to provide lectins and a lectin library comprising these lectins which are useful in recognizing differences in carbohydrates on cell surface (for example, sugar chains and cell surface glycoproteins) reflecting extremely subtle differences among cells etc. and thus distinguishing, identifying or fractionating various cells.

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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 August 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 19, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 19, 2003
GrantedNo grant recorded
Term endedAugust 19, 2023
Patent numberCA 2495336 A1
Classification (IPC)C07K14/47 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 19, 2003Term endedAug 19, 2023

Sources & verification

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