Folding box made of cardboard for receiving tissues stacked one on top of the other
CA 2003256 A1 · Owner: Zuber, Wolfgang · Inventors: Mildner, Eberhard; Zuber, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Folding box made of cardboard for receiving tissues stacked one on top of the other, In the case of a folding box made of cardboard which is, substantially cuboid and whose flat upper side has a prepared surface (18) detachable where appropriate along a closed separating line (25) (perforation) to expose a removal opening (11), it is recommended that a vapourand fluid-impermeable inner body circumscribing a hollow space for receiving tissues is provided which inner body, has an opening overlapping with the described removal opening. At least one of these openings is resealable by way of a tongue-shaped flap. As inner body either a polyethylene coating of the folding box (10) or an inner bag …
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 November 17, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2011.
- 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.