Procedure and an apparatus for filling packaging, in particular paper sacks or paper bags
CA 2094894 A1 · Owner: Kuckhermann, Gustav · Inventors: Kuckhermann, Gustav; Hansson, Per-Ulf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a procedure for filling packaging in particular paper sacks, or paper bags the filling material is emptied from a filling material container that is lowered into the packaging and then emptied when in the lowered position within the packaging. After the emptying procedure, the filling material container moves back into its starting position. Prior to the filling material container being lowered into the packaging a plastic film bag, that is closed at the bottom and open at the top is slipped over the filling material container and, together with the filling material container, is lowered into the preformed packaging. The preformed packaging is located in a preforming apparatus. The …
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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 April 26, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2015.
- 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.