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Expired Canadian patentCanada

Synthesis of 3-amino-thalidomide and its enantiomers

CA 2430669 C · Owner: Pribluda, Victor · Inventors: Rougas, John; Swartz, Glenn M.; Shah, Jamshed H.

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

The invention provides new and useful analogs of 3-amino-thalidomide. These analogs include S(-)-3-amino-thalidomide and R(+)-3-amino-thalidomide. The invention also provides processes for making these analogs. Further the , invention provides methods for inhibiting angiogenesis and treating angiogenesis-associated diseases, including cancer and macular degeneration by administering these compounds.

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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 November 30, 2001 and granted June 14, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 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.
FiledNovember 30, 2001
GrantedJune 14, 2011
Term endedNovember 30, 2021
Patent numberCA 2430669 C
Classification (IPC)A61K31/40 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 30, 2001Patent grantedJune 14, 2011Term endedNov 30, 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.