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Expired Canadian patentCanada

Arthropod repellent pharmacophore models, compounds identified as fitting the pharmacophore models, and methods of making and using thereof

CA 2543590 C · Owner: Bhattacharjee, Apurba K. · Inventors: Gupta, Raj K.; Bhattacharjee, Apurba K.; Lee, Donna Ma

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Abstract From the Canadian patent

Disclosed herein is a pharmacophore model for arthropod repellent activity and methods of making and using thereof. The pharmacophore comprises two hydrophobic aliphatic functions, one aromatic function and one hydrogen bond acceptor function. The pharmacophore model was made using a test set of arthropod repellent compounds. Also disclosed are arthropod repellent compounds identified by screening databases with the pharmacophore model. Also disclosed are methods of repelling arthropods from a surface or area. Compositions and formulations comprising the compounds of the present invention as well as objects having the compounds of the present invention are disclosed.

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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 6, 2003 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2025.
  • 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 6, 2003
GrantedJuly 16, 2013
Term endedNovember 6, 2023
Patent numberCA 2543590 C
Classification (IPC)C07D241/18 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 6, 2003Patent grantedJuly 16, 2013Term endedNov 6, 2023

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