Paper pack container with internal bag for receiving fluids
CA 2033089 A1 · Owner: Ehrhart, Karl-Josef · Inventors: Heuberger, Erich; Ehrhart, Karl-Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pack container for liquids is described,comprising an uprighted folded carton containing an inside bag of plastic material. In its upper region the pack container is slanted on one or two sides to roughly approximate the appearance of a washing concentrate bottle. Optionally the pack container can be provided with a filling and pouring sleeve with a screw cap closure arranged in its head end or it can be opened at one of its slanted sides whereby zigzag shaped folded sections of the main surface areas (1,4) of the folded carton can be uprighted to thus form a pouring opening in which a corner tail of the inside bag is accessible for cutting off.
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 May 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 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.