Dispensing assembly of at least one creamy liquid
CA 2260317 C · Owner: L'Oreal · Inventors: Gueret, Jean-Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The distribution unit for distributing at least one liquid or cream product consists of a container and a distribution head the distribution head comprising at least one distribution channel that is closed at the end; the opening outward of the said channel is controlled by a shut-off mechanism comprising a flexible valve that is elastically deformable under the pressure of the product to be distributed and which cooperates at rest in a non-impervious manner with a rigid fixed base. The whole is characterized by the fact that the valve consists of an elastic nipple with a needle valve at its extremity cooperating with the base the nipple being crushed by pressure from the product to be …
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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 April 9, 1991 and granted March 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2013.
- 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.