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Canadian application, no grantCanada

Spatially addressable combinatorial chemical arrays in cd-rom format

CA 2301230 A1 · Owner: Nagaoka & Co. Ltd. · Inventors: Demers, James P.

CIPO record

Overview

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

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Abstract From the Canadian patent

A method for preparing very large spatially-addressable arrays of chemical compounds by light-directed synthesis is provided wherein the light is , provided by a laser and the compounds are arrayed on a rotating disc in a CD- ROM format. A method for assaying the resulting array with a CD-ROM mechanism is also provided.

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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 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
  • 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 19, 1997
GrantedNo grant recorded
Term endedSeptember 19, 2017
Patent numberCA 2301230 A1
Classification (IPC)G11B7/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedSep 19, 1997Term endedSep 19, 2017

Sources & verification

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