Process and apparatus for packaging a stack of flat objects
CA 2060765 C · Owner: Wieneke, Werner · Inventors: Wieneke, Werner; Frommeyer, Heinrich; Winnemoller, Aloys
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To package a stack of flat objects, preferably a stack that is composed of bags provided with handles and has a height exceeding the width of a bag, the stack is wrapped by a section of a web of paper of plastic and the marginal portions of the web section which overlap on one side face of the stack are adhesively bonded to each other to form a tubular wrapper around the stack. The end portions of the wrapper which protrude from the ends of the stack are folded onto the end faces of the stack so as to form folded corner portions, which are folded onto and adhesively abonded to one side face of the stack. To permit a packaging by means of simple apparatuses, one side portion of each …
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 February 6, 1992 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2014.
- 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.