Non-invasive tear mechanism for flexible packaging and apparatus
CA 2486111 C · Owner: Streicher, James G. · Inventors: Streicher, James G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-invasive tear mechanism for a flexible packaging the non-invasive tear mechanism comprises a horn side wall and an anvil side wall joined to the horn side wall. A plurality of junctions are formed in flexible packaging and form a line of weakness in the flexible packaging. The plurality of junctions that form the line of weakness allow the flexible packaging to be manually opened and the junctions are non-invasive in that the flexible packaging is not cut or scored when the non-invasive tear mechanism is formed. An apparatus for producing a non-invasive tear mechanism in a flexible packaging comprising a carriage a horn mounted on the carriage, an anvil mounted on the carriage and …
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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
- Filed October 27, 2004 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2024.
- 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.