Method and apparatus for producing foil bags
CA 2273417 C · Owner: Wild, Hans-Peter · Inventors: Wild, Hans-Peter; Kraft, Eberhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and an apparatus for producing foil bags, wherein two foils are supplied for forming the side walls of the foil bag wherein, furthermore a bottom foil is supplied to have holes punched thereinto said , holes being, spaced apart in the supply direction of the bottom foil at a distance corresponding to the, width of a foil bag wherein a measurement is carried out during the supply process for, determining whether punched holes have been produced and wherein subsequently , the, side foils and the bottom foil are placed one upon the other and connected to each other, and the foil layer sequence is then cut to form individual foil bags.
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 28, 1999 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2021.
- 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.