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Expired Canadian patentCanada

Preparation for hair and/or scalp

CA 2444282 C · Owner: Hosoe, Kazunori · Inventors: Fujii, Kenji; Kawabe, Taizo; Hidaka, Takayoshi

CIPO record

Overview

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

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Abstract From the Canadian patent

The present invention provides a preparation for hair and/or scalp which is effective in growing hair and preventing hair removal and has an excellent skin-care effect-on the scalp and high safety. The preparation comprises, as active ingredients, either oxidized coenzyme Q and reduced coenzyme Q or reduced coenzyme Q alone the , total content of oxidized coenzyme Q and reduced coenzyme Q being 0.0001 to 99% by weight based on the whole of the preparation.

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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 May 8, 2002 and granted November 15, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2024.
  • 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 8, 2002
GrantedNovember 15, 2011
Term endedMay 8, 2022
Patent numberCA 2444282 C
Classification (IPC)A61K31/12 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 8, 2002Patent grantedNov 15, 2011Term endedMay 8, 2022

Sources & verification

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