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Canadian application, no grantCanada

Aromatic sulfonyl alpha-hydroxy hydroxamic acid compounds

CA 2283145 A1 · Owner: Heintz, Robert M. · Inventors: Howard, Susan C.; Mischke, Brent V.; Decrescenzo, Gary A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An aromatic sulfonyl alpha-hydroxy hydroxamic acid compound that inter alia inhibits matrix metalloprotease activity is disclosed as is a treatment , process that comprises administering a contemplated aromatic sulfonyl alphahydroxy hydroxamic acid compound in a MMP enzyme-inhibiting effective amount to a host having a condition associated with pathological matrix metalloprotease activity.

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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 March 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 4, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 4, 1998
GrantedNo grant recorded
Term endedMarch 4, 2018
Patent numberCA 2283145 A1
Classification (IPC)C07D403/02 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMarch 4, 1998Term endedMarch 4, 2018

Sources & verification

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