Apparatus for packaging products
CA 1281990 C · Owner: Reichsthaler-Heynemann, Liesel · Inventors: Reichsthaler-Heynemann, Liesel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for packaging products in a bag of plastic material comprises means (3-15) for transporting a continuous, flat, tube-like materal web (2). The web 2 is subsequently transported along a fist sealing unit (16) for applying a seal between the upper and under layers (17 18), of the material web, a perforating knife (19) for making a tearing perforation in the upper and under layers of the material web seen in transport direction directly behind the seal, a tearing unit (20) for tearing open the perforation in the upper layer of the material web a separating unit, (21) for moving the upper layer away form the under layer at the location of the torn perforation, a filling station …
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
- Granted March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 2008.
- 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.