Improved smoking article carton and blank therefor
CA 2244769 C · Owner: Walter, Sidney John · Inventors: Walter, Sidney John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an improved carton (1) for smoking articles which , carton has a dispensing portion (28). The dispensing portion has a particular location in respect to the longitudinal margins of the carton and extends from a position (30) short of one longitudinal side margin (3) of the carton across the panel (2) thereof, through another longitudinal side margin (4) of the carton and into another panel (15) of the carton. The perforation line (29) of the dispension portion is particularly selected to provide added strength to the carton and to allow consequent economies in other enclosed packing materials.
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
- Filed January 30, 1997 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2019.
- 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.