Non-aqueous battery of a thin configuration
CA 2283931 C · Owner: Minakata, Takashi · Inventors: Yasukata, Kouichi; Minakata, Takashi; Sasayama, Masa-Aki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a non-aqueous battery which employs a casing made of opposites sheets of at least-three-layer laminates, each comprising an inner thermoplastic resin layer, a middle metal foil layer and an outer electrically insulating material layer, wherein the pouchy casing has an elongated, hermetic adhesion area along a periphery of the pouchy casing in which adhesion area the opposite inner thermoplastic resin layers are meltadhered to each other and the casing has terminalwithdrawal sites in the hermetic adhesion area and, wherein the casing satisfies any one or both of the following characteristics (.alpha.) and (.beta.): (.alpha.) the width of an elongated portion of the middle metal …
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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 19, 1998 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2020.
- 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.