Double sealed pizza package
CA 2456274 C · Owner: Kraft Foods Global Brands Llc · Inventors: Mattisson, Lennart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hermetic package for a food product having a first wall a second wall and a, receiving cavity. The first wall defines a first portion of the receiving cavity and a first, flange. The second wall defines a second portion of the receiving cavity and a second, flange. The first and the second portions of the receiving cavity are combined by, joining the first flange to the second flange to form an inner seal that surrounds the, receiving cavity. The first flange and the second flange are further joined to one, another to form an outer seal that is disposed outside of and at least partially surrounds, the inner seal. The inner seal and the outer seal are substantially separated from …
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 January 19, 2004 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2026.
- 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.