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Canadian application, no grantCanada

Graphite anchor targets

CA 2468840 A1 · Owner: Amersham Biosciences Ab · Inventors: Axelsson, Jan

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention relates to a method of treating MALDI target slides (1) and slides after such treatment, in which droplets of a suspension of graphite particle are applied to the target surface (4) of a target slide (1) and allowed to evaporate. The resulting spots (2) left on the target surface contain homogeneously distributed graphite particles (3).

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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 November 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 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.
FiledNovember 28, 2002
GrantedNo grant recorded
Term endedNovember 28, 2022
Patent numberCA 2468840 A1
Classification (IPC)H01J49/04

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 28, 2002Term endedNov 28, 2022

Sources & verification

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