Dispensing package for fluid products and the like
CA 2014789 C · Owner: Brown, Paul E. · Inventors: Brown, Paul E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispensing package is provided for fluid products such as liquids, pastes, powders and the like. The package comprises a container in which the product is packaged and a, self-sealing dispensing valve which automatically opens and closes in response to the application and removal of a predetermined threshold pressure. A removable closure may be provided to cover the dispensing valve and prevent inadvertent discharge of the product during transport storage and other, similar conditions.
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 April 18, 1990 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2012.
- 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.