Waving lotion for cold waving
CA 1214108 A · Owner: Shiseido Company Ltd. · Inventors: Kubo, Sanae; Nakamura, Fumiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous waving lotion for cold waving comprising: (i) a mercapto compound, (ii) at least one compound selected from the group consisting of the compounds having the general formulae (I) to (XX) (I) (II) (III) (IV) (V), (VI) (VII) (VIII) (IX) (X) (XI) (XII) (XIII) (XIV) (XV), (XVI) (XVII) (XVIII) (XIX) (XX) wherein R1 is hydrogen or an electron attractive group, R2 is hydrogen or an alkyl group having 1 to 4 carbon atoms, and R3 is hydrogen, a hydroxyl group or, a methyl group, and (iii) a cyclodextrin. This aqueous waving lotion has no substantial mercaptan odor and generates no substantial or less of a mercaptan odor when applied to the hair.
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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 November 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
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.