Shaving aid composite with a non-volatile cooling agent
CA 2224263 C · Owner: Lim, Lee K. · Inventors: Ndou, Thilivali T.; Yin, Yuling; Lim, Lee K.
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 (20 24) 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) which comprises a non-volatile cooling agent, such as a non-volatile menthol analog. Preferably the shaving aid composite (42) comprises a matrix of a water-insoluble polymer and, dispersed within the matrix, a skin lubricating water-soluble polymer and a non-volatile cooling agent. Alternatively the shaving aid composite (42) …
Read the whole patent
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 April 9, 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.