Closure with internal security for bottles and the like
CA 1193559 A · Owner: Guala Fin S.P.A. · Inventors: Guala, Pier G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A closure with internal security for bottles and the like is described, which allows the contents to be immediately and freely poured out from the bottle as soon as it is taken from the refrigerator, and therefore has a partial vacuum within it. This closure includes a body fixed to the mouth of the bottle, in which is defined a fluid passage, a cap which can be screwed onto the said body to close the said passage, at least one valve shutter element along the said passage and movable within the said body to engage a valve seat in the said passage engagement means between the shutter and the cap for turning of the shutter by the cap as it is unscrewed and, a cusp-shaped projection in the …
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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
- Granted September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
- 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.