Automatic closing distributor device for liquid or pasty product container
CA 2067760 C · Owner: De Laforcade, Vincent · Inventors: De Laforcade, Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The dispensing device is comprised of a membrane (M) configured like an outwardly convex dome (5) covering an outlet end (3) of the container and at least one slot (8) provided towards the top of the dome. A rigid cap (9) is provided to be fixed to the container end (3) fitted with the membrane (M) and to partially cover the dome (5) in a region surrounding the slot (8) which remains uncovered; projecting bearing means (A) are provided on at least one of the two surfaces formed by the internal surface (13) of the cap and the external surface (14) of the membrane. and said internal surface (13) of the cap assumes the shape of the external surface (14) of the membrane when it is in a free …
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 August 27, 1991 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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.