Easy opening boil-in-bag pouch
CA 2202230 A1 · Owner: Zartner, Rainer Rudolf · Inventors: Zartner, Rainer Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A boil-in-a-bag pouch provided with a handle for grasping and lifting the pouch and including a easy opening mechanism. The opening of the pouch is facilitated by a longitudinal line of weakness spaced a short distance from one longitudinal edge of the pouch in combination with either a lateral cut from the edge of the pouch to the line of weakness or one or more interruptions in the lateral seals used to form and seal the pouch through which the line of weakness passes. The interruptions in the lateral seal are small enough to prevent egress of the product from the pouch and are located so as to permit the pouch to be torn open along the line of weakness through the interruptions in the …
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
- Filed April 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2019.
- 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.