Method of making bags and bag material having hinged zipper strips
CA 1300413 C · Owner: Ausnit, Steven · Inventors: Ausnit, Steven; Boeckmann, Hugo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making reclosable bag material and bags made therefrom, wherein the bag making film providing bag walls is provided with an extruded plastic profile reclosable fastener strip across a portion of the longitudinal formation axis of the film and bag walls to be located at the open end of the bag and the strip having a base web for attachment to the film, and bonding the base web of the fastener strip to the film so that on one wall of the bag the base web is attached above and below the profile structure on the strip and on the other wall of the bag the base web is bonded to the film at a location only above the centerline of the profile structure on the strip.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.