Hermetically sealed package and method of producing the same
CA 1307240 C · Owner: Odaka, Hiroshi · Inventors: Kishida, Tsuyoshi; Odaka, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hermetically sealed package comprising: (a) a multilayer container comprising at least an innermost layer and a layer adjacent to the innermost layer the, innermost layer and the layer adjacent to the innermost layer being joined by a pressure sensitive adhesive the, multilayer container including, (1) a recessed portion; (2) a flat flange portion adjoining integrally the rim of the recessed portion; and, (3) a notch surrounding the boundary between the recessed portion and the flat flange portion, the notch being provided on the flat flange portion in the innermost layer of the multilayer container; and (b) a top film including, (1) a lid portion for sealing the multilayer container. the …
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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
- Granted September 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 2009.
- 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.