Device for opening hermetic flexible containers
CA 2544085 C · Owner: Tessera Chiesa, Emilio · Inventors: Tessera Chiesa, Emilio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described herein is a device for opening hermetic flexible containers (1) comprising a flexible strip (7) heat-sealed to the internal surface of a wall (3) of the container (1) and incorporating a tape-like thread (9) having a tear tab (10) to cause tearing of the strip (7) and the consequent tearing of the wall (3) of the container (1) via a gripping tab (5) of said wall (3). The gripping tab (5) and tear tab (10) are staggered with respect to one another and hermetically isolated by a heat seal (19) between the strip (7) and the wall (3) of the container (1).
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 19, 2006 and granted January 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.