Cigarette box having a lid that can be torn to form an opening for drawing out a cigarette stick
CA 2442353 A1 · Owner: Lin, Yao-Chang · Inventors: Lin, Yao-Chang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cigarette box includes a box body, a flip-top lid and a cover. The box body is adapted to receive cigarette sticks therein. The lid is connected pivotally to the box body, and has a top portion formed with an opening that has a size sufficient to permit removal of no more than one of the cigarette sticks from the box body. The cover has a size corresponding to that of the opening and has a peripheral edge that includes at least one tearable section connected to the top portion of the lid by a weakened seam such that the cover can be torn from the lid at the weakened seam to uncover the opening.
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 September 24, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2025.
- 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.