Paper-laminated pliable closure for flexible bags
CA 1293852 C · Owner: Koppe, Lou W. · Inventors: Koppe, Lou W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract: A thin, flat closure for plastic bags and of the type having at one edge a V-shaped notch (12) which communicates at its base with a gripping aperture (14). The base (10) of the closure is made of a flexible material so that it can be repeatedly bent without, fracturing, along an axis aligned with said notch and aperture. In addition, a layer of paper (20) is laminated on one or both sides of the closure. The axis of the base may contain one or two grooves (18) or a through-hole (26), either of which acts as a hinge to facilitate bending.
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 January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 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.