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Expired Canadian patentCanada

Target and background capture methods and apparatus for affinity assays

CA 1309329 C · Owner: Collins, Mark Leo · Inventors: Collins, Mark Leo

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

Methods, compositions and instruments for performing affinity assays for target molecules include contacting a sample with a retrievable support capable of forming a substantially homogenous dispersion within a sample medium and reversibly binding to the target molecule. The retrievable support is capable of being separated from the sample medium recapturing the target molecule from other constituents of the sample.

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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

  • Granted October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1987
GrantedOctober 27, 1992
Term endedOctober 27, 2009
Patent numberCA 1309329 C
Classification (IPC)G01N33/53 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedOct 20, 1987Patent grantedOct 27, 1992Term endedOct 27, 2009

Sources & verification

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