Wrap around carton locking means
CA 1323612 C · Owner: Graphic Packaging International, Inc. · Inventors: Cooper, Leonard Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A carton having a bottom panel comprised of two overlapping flaps. The outer flap has a primary male tab engaging a primary female locking edge in the inner flap, while the inner flap has a secondary male locking tab engaging a secondary female locking opening in the outer flap. The secondary locking tab is connected to the carton along a fold line coinciding with the fold line connecting the inner flap to the adjacent side panel allowing a, large secondary locking tab to be used even though the bottom panel is narrow. The outer and inner flaps are able to overlap across substantially the full width of the flaps to form a bottom panel of double thickness.
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
- Granted October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
- 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.