Dispenser head with improved air intake, and packaging and distribution assembly fitted with such a head
CA 2248232 C · Owner: Baudin, Gilles · Inventors: Baudin, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This application relates to a head (10) for dispensing a viscous product contained in a receptacle (1) the said head being of the type with an outlet orifice (29) selectively closed by a closing device (20) in the form of an elastically deformable element able to spread in reaction to pressure from the product to clear the said orifice and allow the product to flow out for dispensing and to return elastically, on closing contact with a seat (22) comprised of the said dispensing head when pressure ceases, a portion (20, 22) comprised of a porous material impervious to the product, being designed to allow intake of filtered air inside the said receptacle (1) through the said porous material, …
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 October 9, 1998 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2020.
- 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.