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Canadian application, no grantCanada

Test device comprising a plate containing a multiplicity of wells with an associated metering device, as well as a kit which comprises these devices and use of the devices

CA 2123801 A1 · Owner: Centraal Diergeneeskundig Instituut · Inventors: Ligtvoet, Gerard Johannes; Puijk, Wouter Cornelis; Meloen, Robert Hans

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

The invention relates to a test device comprising a plate containing a multiplicity of wells. The invention also relates to a metering device suitable for simultaneously introducing equal volumes of reagent into different wells of the test device. The test device comprises wells which have a volume within the range of 0.1-20 µl. The ratio between the depth of the wells and the diameter is preferably less than 1:1. The test device according to the invention can be used for carrying out a bio- or immuno-chemical test such as a pepscan or ELISA.

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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 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2014.
  • 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 20, 1992
GrantedNo grant recorded
Term endedNovember 20, 2012
Patent numberCA 2123801 A1
Classification (IPC)G01N33/54 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 20, 1992Term endedNov 20, 2012

Sources & verification

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