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Expired Canadian patentCanada

Functionalized carrier materials for the simultaneous synthesis and direct labelling of oligonucleotides as primers for template-dependent enzymatic nucleic acid syntheses

CA 2113478 C · Owner: Roche Diagnostics Gmbh · Inventors: Groger, Gabriele; Markiewicz, Wojciech; Klotz, Margit

CIPO record

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Abstract From the Canadian patent

The synthesis and use of polymeric carriers is described which are loaded with nucleic acid building blocks which in turn contain labelling groups or precursors thereof. The polymeric carrier loaded in this way serves as a solid or liquid phase for the assembly of oligonucleotides which can be used as primers for template-dependent enzymatic nucleic acid syntheses such as for example in sequencing analysis according to Sanger and co-workers or in the polymerase chain reaction (PCR).

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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 August 22, 1992 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 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.
FiledAugust 22, 1992
GrantedJune 12, 2001
Term endedAugust 22, 2012
Patent numberCA 2113478 C
Classification (IPC)C12N15/10 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedAug 22, 1992Patent grantedJune 12, 2001Term endedAug 22, 2012

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