Package and a method for sealing the package
CA 2053667 A1 · Owner: Axelsson, Katarina · Inventors: Ingemarsson, Hakan; Axelsson, Katarina
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A package comprising a tray (1) and a removable lid (3), which package is especially intended for keeping and heating of ready-cooked food, the lid being made of cardboard and/or plastics material and the tray being made of plastics and provided with a frame (2) surrounding its opening. The features of the package are that the lid (3) detachably rests on the frame (2) of the tray and has a lesser extension than same and that a plastic film (4) covers the lid and at least part of the frame and is heat-sealed only to the portion (2b) of the frame located outside the lid. The invention also relates to a method for sealing the package.
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 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2013.
- 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.