Cardboard boxes, blanks and machine to produce said boxes
CA 2047497 C · Owner: Bacques, Jean-Yves · Inventors: Bacques, Jean-Yves; Coalier, Guy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Box made of sheet material such as paperboard or corrugated board that comes in pairs of square or rectangular sections joined by a fold the folds being parallel. The box has at least five sides and is created by rolling a length of the material around a mandrel with the help of a pressure plate whose shape matches that of two or three successive sections of the mandrel.
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 July 22, 1991 and granted July 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2013.
- 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.