Panel interlocking means for cartons
CA 2279903 C · Owner: Le Bras, Philippe · Inventors: Le Bras, Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A carton or carton blank comprising panel interlocking means for securing together a first and a second panel (10 12) in overlapping relationship, said first panel comprising a locking tab (14) struck from said first panel adjacent a free edge thereof and extending away from the free edge of said first panel, the locking tab having a neck portion (20) hinged at a base thereof to said first panel and terminating in a shoulder portion (22) and wherein said second panel includes an aperture (46) struck from said second panel adjacent a free edge (48) thereof and wherein the aperture is adapted to receive the locking tab such that when the panels are locked together the free edge of …
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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 February 6, 1998 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2020.
- 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.