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Expired Canadian patentCanada

Reaction tube and method of use to minimize contamination

CA 2173861 C · Owner: Hanley, Kathleen A. · Inventors: Lee, Helen H.; Perko, Timothy J.; Pepe, Curtis J.

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 disposable reaction vessel for performing nucleic acid amplification assay. The disposable reaction vessel has a penetrable cap that can be penetrated by an automated pipettor to aspirate a portion of an amplified reaction product. The disposable reaction vessel contains the reagents necessary to perform a nucleic acid amplification assay. A patient speciment is added to the unit dose reagents in the disposable reaction vessel and the penetrable cap is closed. The disposable reaction vessel containing the reaction mixture and the specimen undergoes amplification, typically by placing it in a thermal cycler. After amplification the intact disposable reaction vessel is transferred to an …

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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 October 21, 1994 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2016.
  • 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 21, 1994
GrantedDecember 23, 2003
Term endedOctober 21, 2014
Patent numberCA 2173861 C
Classification (IPC)B01L3/14 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedOct 21, 1994Patent grantedDec 23, 2003Term endedOct 21, 2014

Sources & verification

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