An improved fastener assembly, fastener tape material, bag utilizing fastener tape material, and method of manufacture thereof
CA 2276669 C · Owner: Ami/Rec Pro, Inc. · Inventors: Johnson, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention includes methods an apparatus and a system in which reclosable bags and components thereof are formed. The reclosable bags are made from base web material that has transversely applied fastener tape segments thereon. The web material is used in a vertical form fill and seal bag forming method. The method includes the steps of supplying a continuous strip of tape having first and second closure elements sealed thereon. The first and second closure elements have respectively a pair of male profiles and a pair of female or u-shaped elements thereon each shaped for interlocking with the other. A thickened sealing bridge between the male elements and a second thickened …
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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 June 30, 1999 and granted September 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2021.
- 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
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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.