Attachment of plastic zipper to incompatible bag wall web
CA 1307497 C · Owner: Bentsen, Per · Inventors: Bentsen, Per; Ausnit, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bag structure and a method wherein thin sheet or film bag body material, and fusibly incompatible extruded plastic zipper are joined together. A pair of zipper strips having reclosable zipper profiles and located along the outer faces of the bag wall panels have fused connecting anchors extending from zipper strip socket wall portions through holes in anchoring material of the bag body material received in sockets in the zipper strips and thereby permanently attach the zipper strips to the bag body material.
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 September 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 2009.
- 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.