Introduction front stop to be used in a device destined to feed in folding box blanks
CA 2080200 C · Owner: Bobst S.A. · Inventors: Vauthier, Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The introduction front stop (20) of rectangular section has at its lower part an upright surface (29) connected to a rounded part (30). A bore (32) which is closed at one of its end and connected to a fluid source at its other end is linked to the atmosphere by means of channels (33) so as to make up a flow of fluid between a blank in the course of being fed in and the following one of a pile of blanks to be fed in into a machine processing them.
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 October 8, 1992 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 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.