Bag clamping device
CA 2085331 C · Owner: Chronos Holding Limited · Inventors: Kader, Karl-Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bag clamping device for holding a bag to be filled especially a bag with side folds, on a filling neck the bag, clamping device being formed by: a first pair of clamps each, comprising clamping members for holding opposed first bag wall segments on the filling neck, and a second pair of clamps each comprising pairs of clamping members, the pair of second clamping members comprising first surface parts which in, pairs, rest against one another in such a way that any bag wall parts positioned in front of the end faces are gripped and held in the bag edge region, as well as second surface parts which are arranged at an angle relative to the first surface parts which are adapted to the end …
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 14, 1992 and granted July 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 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.