Pack made from board
CA 2033050 C · Owner: Schragle, Walter · Inventors: Matzel, Jurgen; Breitenauer, Fritz; Harbour, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pack made from board for free-flowing products such as detergent with two, side panels, a front panel, a back panel a base and a closure flap which, is hinged to the back panel and under which further flaps hinged to the other panels are located, where the flap hinged to the front panel extends across the whole cross-section of the pack and has a tab hinged to it that rests against the inside of the closure flap. The flap (24) hinged to the front panel (3) has parallel score lines (27 28) provided at least to, some extent in duplicate and located a short distance from the top edges of the two side panels (4, 5) which also extend across the hinged tab (26) and act as tear lines. Sections …
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 December 21, 1990 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2012.
- 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.