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Expired Canadian patentCanada

Use of 2, 4-monofufurylidene-sorbitol and its tetraalkyl derivatives in cosmetics and dermatology

CA 1323573 C · Owner: Laboratori Fitocosmesi E Farmaceutici Srl · Inventors: Bertelli, Vittorio

CIPO record

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Abstract From the Canadian patent

The use of 2,4-monofurfurylidene-sorbitol and 2,4-monofurfurylidene-1,3,5,6-0-tetraalkylsorbitol wherein the alkyls are linear or branched C1 - C4, in the preparation of cosmetics and dermatology compositions for preventing premature ageing of the skin caused by free radicals which form in the skin either physiologically or by the effect of environmental pollutant substances or radiation. Said compositions are in the form of creams, gels, lotions sprays, etc. and, contain between 0.5 and 2% by weight or 2,4-monofurfurylidenesorbitol or 2,4-monofurfurylidene-1,3,5,6-0-tetraalkylsorbitol.

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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

  • Granted October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 1988
GrantedOctober 26, 1993
Term endedOctober 26, 2010
Patent numberCA 1323573 C
Classification (IPC)A61K31/34 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 27, 1988Patent grantedOct 26, 1993Term endedOct 26, 2010

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