Substituted 1-(alkoxy-iminoalkyl)imidazole derivatives
CA 2053256 A1 · Owner: Menichincheri, Maria · Inventors: Salvati, Patricia; Cozzi, Paolo; Ferti, Corrado
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2053256 9113062 PCTABS00007, 1-(Alkoxy-iminoalkyl)imidazole derivatives of formula (I) wherein R is hydrogen or C1-C4 alkyl; A is C1-C4 alkylene optionally substituted by phenyl optionally substituted by halogen or trifluoromethyl; R is (a) hydrogen or a C1-C10 hydrocarbon radical; (b) an aryl or aryl-C1-C4 alkyl group wherein the said aryl is optionally substituted either by halogen trihalo-methyl, C1-C4 alkyl, C2-C3 alkenyl C2-C6 alkynyl, C1-C4 alkoxy, C1-C4 alkylthio or C1-C4 alkylsulfonyl or by C5-C8 alkyl, C4-C8 alkenyl, C5-C8 alkoxy C5-C8, alkylthio or phenyl optionally substituted by halogen trihalomethyl, or C1-C4 alkyl; or (c) a C5-C8 cycloalkyl or C5-C8 cycloalkyl-C1-C4 alkyl …
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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 February 26, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2013.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.