Draining means for venting systems
CA 2215780 C · Owner: Lake, Kirk Wallace · Inventors: Van Den Branden, Bruno; Lake, Kirk Wallace; Rogers, Neil John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a package or a cap (10) for a package for , containing viscous liquid products. The package or the cap comprises a venting means (20). Said venting means (20) allows passage of gases between the interior and the exterior of package when the pressure inside said package differs from the external ambient pressure. Said package or cap further comprises a means (30) which improves the drainage of the splashed product away from said venting means and back into said container.
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 February 20, 1996 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 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.