A method and apparatus for handling sheet stacks
CA 2208512 C · Owner: Dieffenbacher Panelboard Oy · Inventors: Valimaki, Pentti; Korhonen, Antti
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for moving stacks of sheets to and from a storage area. Handling apparatus has transfer elements disposed for receiving and delivering a sheet stack having at least one sheet. A support bed for the sheet stack is constructed so that the bed may be withdrawn into a space of the handling apparatus so that a top level of the support bed remains below a top level of the transfer elements. The support bed with the sheet stack is movable from the handling apparatus into storage and from, storage to the handling apparatus.
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 December 21, 1995 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2017.
- 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.