Thermally insulated synthetic resin container, thermally insulated synthetic resin lid and manufacturing method therefor
CA 2263123 A1 · Owner: Yamada, Masashi · Inventors: Tanaka, Atsuhiko; Yamada, Masashi; Fujii, Takafumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a thermally insulated synthetic resin container (1 31, 61, 81), a, thermally insulated synthetic resin lid (21 51) , and a manufacturing method , therefor. The thermally insulated synthetic resin container (1 31, 61, 81) comprises a , thermoinsulating layer (4, 43, 65, 92) comprising a thermoinsulation material (5 34, 64, 84) in , which is retained at, least one low thermoconductive gas selected from the group consisting of xenon, krypton, and, argon, disposed in a space between a synthetic resin inner container (3 33, 63, 83) and outer, container (2, 32 62, 82). The thermally insulated synthetic resin lid (21 51) similarly, comprises a thermoinsulating layer …
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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
- Filed March 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2021.
- 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.