Reinforced integral handle for cartons
CA 1104976 A · Owner: Container Corporation Of America · Inventors: Brandenburger, Allen M.; Stanton, Allyn K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A carton having a reinforced carrying handle is formed from a single blank of paperboard or the like. The carton has foldably connected panels defining a rectangular cross section tube with flaps extending from its lower end to define a closure. The other end of the panels is provided with a closure and carrying structure consisting of closure flaps extending from one pair of opposed panels and handle-forming flaps extending from the other pair of opposed panels. The flaps are arranged in lapping relationship with each other. The handle-forming flaps have central handle forming elements which can be erected with the distal portion of the flaps maintained in adhered relationship to …
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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
- Granted July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- 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.