Cap for a container
CA 2113903 A1 · Owner: Wellcome Foundation Limited (The) · Inventors: Ogden, Brian Leslie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cap (1) for a container having a screw threaded opening comprising an inner part (3) in the form of a screw threaded cap an, outer part (2) the inner part (3) being axially displaceable relative to the outer part (2) and biased therefrom between an unlocking and locking position, resilient biasing means (17) between the inner and outer parts, a boss (6), and engagement means (15) adapted to engage with the boss upon (6) depression of the outer part (2), such that turning the cap will unscrew it from the container wherein one of the boss (6) or engagement means (15) is located on the top surface of the inner part (3) and the other is located on the inner top surface of the outer part (2).
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 July 29, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2014.
- 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.