Patent Yard Sign in
Expired Canadian patentCanada

Detection of hydrophobic amplification products by extraction into an organic phase

CA 2200347 C · Owner: Walker, G. Terrance · Inventors: Walker, G. Terrance

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Amplification of a target sequence is detected qualitatively or quantitatively by concurrent generation of secondary amplification products labeled with a lipophilic label. The secondary amplification products are designed such that they are generated and cleaved or nicked in a target amplification-dependent manner. This reduces the number of hydrophilic nucleotides linked to the lipophilic label and allows the cleaved or nicked secondary amplification product comprising the lipophilic label to be transferred from the aqueous reaction phase to an organic phase for detection as an indicator of target amplification.

Read the whole patent

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 July 18, 1996 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 18, 1996
GrantedDecember 5, 2000
Term endedJuly 18, 2016
Patent numberCA 2200347 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 18, 1996Patent grantedDec 5, 2000Term endedJuly 18, 2016

Sources & verification

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