Patent Yard Sign in
Expired Canadian patentCanada

Preparation process of polymeric solid electrolyte

CA 2038089 C · Owner: Suga, Masanobu · Inventors: Suga, Masanobu; Akita, Seiichi; Kobayashi, Hiroshi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention provides a process for readily preparing polymeric solid electrolyte, i.e. ion conductive polymer having excellent properties. The process of the invention comprises steps of subjecting at least one of the following component A and component B to contain an alkali metal salt and/or an ammonium salt and mixing the components A and the component B. Component A: a solution obtained by dissolving a radical polymerization promotor in a specific polyether base macromonomer. Component B: a solution obtained by dissolving a radical polymerization initiator in a specific polyether base oligomer and/or an organic non-aqueous solvent. To at least one of the component A and component B, a …

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 March 11, 1991 and granted February 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 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.
FiledMarch 11, 1991
GrantedFebruary 2, 1999
Term endedMarch 11, 2011
Patent numberCA 2038089 C
Classification (IPC)H01G9/02 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 11, 1991Patent grantedFeb 2, 1999Term endedMarch 11, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.