Shrink wrap packaging machine
CA 2239939 C · Owner: Limousin, Jean Louis · Inventors: Limousin, Jean Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved machine is disclosed for stacking a plurality of flat objects (10). The improved machine for stacking is suitable for use with a packaging machine such as a shrink wrap packaging machine (4) for packaging the plurality of flat objects (10) with a heat shrinkable film (25). An input conveyor (44) individually conveys each of the plurality of flat objects (10) to the stacker (50). The stacker (50) forms a vertical stack of the flat objects (10) from the plurality of flat objects (10). The stacker (50) may be used in conjunction with a wrapper (90) to form the heat shrinkable film (25) into a film tube (30) with the vertical stack of flat objects (10) disposed therein. An input …
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 March 14, 1994 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2016.
- 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.