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Expired Canadian patentCanada

7-substituted tetracycline compounds

CA 2415718 C · Owner: Bhatia, Beena · Inventors: Verma, Atul; Sheahan, Paul; Messersmith, David

CIPO record

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Abstract From the Canadian patent

The present invention pertains, at least in part to novel 7-substituted , tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states such as bacterial infections , and neoplasms as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.

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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 June 29, 2001 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 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.
FiledJune 29, 2001
GrantedAugust 28, 2012
Term endedJune 29, 2021
Patent numberCA 2415718 C
Classification (IPC)C07C237/26 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJune 29, 2001Patent grantedAug 28, 2012Term endedJune 29, 2021

Sources & verification

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