Device for opening and reclosing containers
CA 2238507 C · Owner: Weiteder, Hans · Inventors: Weiteder, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention discloses a device for the opening and reclosing of containers, more particularly flat gable composite packagings, having: a pouring aperture; a pouring nozzle formed thereon; and a basic element (1) having a, flange enclosing the pouring aperture for the attachment, of the device to the surface of the container; a cover (2) hinged to the basic element (1); and an opening element (3) connected to the cover (2), the opening element (3) being so disposed to move in a guide in the cover (2) that during the opening operation the subjacent container material is pierced through the pouring aperture in the basic element (1) by the opening element (3), the clean opening and reclosing …
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 18, 1997 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2019.
- 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.