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Expired Canadian patentCanada

Mammalian sweet and amino acid heterodimeric taste receptors

CA 2452716 C · Owner: The Regents Of The University Of California · Inventors: Chandrashekar, Jayaram; Nelson, Gregory A.; Ryba, Nicholas J. P.

CIPO record

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Abstract From the Canadian patent

The present invention provides isolated nucleic acid and amino acid sequences of sweet or amino acid taste receptors comprising two heterologous G-protein coupled receptor polypeptides from the T1R family of sensory G-protein coupled receptors, antibodies to such receptors methods of detecting such nucleic , acids and receptors and methods of screening for modulators of sweet and amino acid taste receptors.

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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 July 3, 2002 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2024.
  • 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 3, 2002
GrantedJune 26, 2012
Term endedJuly 3, 2022
Patent numberCA 2452716 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJuly 3, 2002Patent grantedJune 26, 2012Term endedJuly 3, 2022

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