Packaging
CA 1297075 C · Owner: Wonnacott, Roger J. · Inventors: Wonnacott, Roger J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A packaging carton (e.g. for cans (31) of drink) comprises a reinforcing tape (18) incorporated in the board material from which the carton is formed which tape reinforces a carrying handle (20) defined by two parallel cuts formed in an end wall of the carton. Access to the contents of the carton are obtained by defining access flaps (23, 24) delimited by lines of weakness (22a 22b), which extend up to the cuts defining the carrying handle. By locating the handle (20) in the median plane between two rows of cans, free passage of cans from the opening provided by an access flap is prevented by the handle thus ensuring one-by-one dispensing of the cans from the carton.
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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.