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Expired Canadian patentCanada

Disinfecting microemulsions

CA 2271636 C · Owner: Trani, Marina · Inventors: Serego Allighieri, Giadra; Petri, Marco; Trani, Marina

CIPO record

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Abstract From the Canadian patent

In its broadest embodiment the present invention relates to the use of a microemulsion comprising a surfactant, an aqueous phase and droplets dispersed in said aqueous phase, said droplets comprising an essential oil or an active thereof, and said droplets having a particle size of less than 100 nanometers for disinfecting a surface. The present invention further encompasses a microemulsion suitable for disinfecting a surface comprising a surfactant, an , aqueous phase comprising a bleach and droplets dispersed in said aqueous phase, said droplets comprising an essential oil or an active thereof and , said droplets having a particle size of less than 100 nanometers.

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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 November 6, 1997 and granted August 13, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 6, 1997
GrantedAugust 13, 2002
Term endedNovember 6, 2017
Patent numberCA 2271636 C
Classification (IPC)A61L2/18 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 6, 1997Patent grantedAug 13, 2002Term endedNov 6, 2017

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