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Expired Canadian patentCanada

Polyamide nucleic acid derivatives, agents and methods for producing same

CA 2406168 C · Owner: Breipohl, Gerhard · Inventors: Will, David William; Breipohl, Gerhard; Uhlmann, Eugen

CIPO record

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Abstract From the Canadian patent

The invention relates to PNA derivatives which carry a phosphoryl radical on the N terminus of the PNA backbone, for example a phosphate or a substituted phosphoryl radical substituted , phosphoryl derives optionally carrying one or more marker groups or groups for cross-linking or groups which favor intracellular take-up or groups which increase the binding affinity of the PNA derivative to nucleic acids. The invention also relates to a method for producing the aforementioned PNA derivatives and to their use as medicaments and diagnostic agents.

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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 April 7, 2001 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 2001
GrantedJanuary 24, 2012
Term endedApril 7, 2021
Patent numberCA 2406168 C
Classification (IPC)C07K14/00 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedApril 7, 2001Patent grantedJan 24, 2012Term endedApril 7, 2021

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