Shaving aid composite with an inclusion complex of a skin-soothing agent and cyclodextrin
CA 2224223 C · Owner: Tseng, Mingchih Michael · Inventors: Yin, Yuling; Lim, Lee K.; Ndou, Thilivali T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a shaving system of the wet shave type comprising a blade member (one or more) (20 24) and a structure (12) which , supports or holds the blade member and which has an external skin engaging portion (34) in proximity to the blade member. The skin engaging portion (34) includes an improved shaving aid composite (42) (or lubricating strip) which contains an inclusion complex of a skin-soothing agent such as menthol, with , a cyclodextrin. Preferably the shaving aid composite (42) comprises a matrix of a water-insoluble polymer, an effective amount of a skin lubricating watersoluble polymer dispersed within the matrix and an inclusion complex of a , …
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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 June 28, 1996 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2018.
- 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.