Reclosable food packaging having snap closure
CA 2027709 A1 · Owner: Kraft Foods, Inc. · Inventors: Hustad, Gerald O.; Grindrod, Paul E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A food package container including a base and a body in alignment with and peelably sealed to each other is provided. At least one of snap closure assembly is provided on the respective peripheral flanges of the base and body, and this snap closure assembly provides an audible snapping signal when the consumer recloses the food packaging container. The closure assembly includes an insertion projection and an opening in general registry therewith which is undersized with respect to the projection.
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 October 16, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2012.
- 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.