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Expired Canadian patentCanada

Capacitor with non-noble metal electrodes and method of making the same

CA 1098186 A · Owner: Erie Technological Products, Inc. · Inventors: Marshall, Gilbert L.

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Abstract From the Canadian patent

Abstract of Disclosure, A ceramic capacitor having electrodes. The capacitor is formed by cosintering layers of ceramic dielectric and layers of non-noble metal material indifferent to the dielectric layers corresponding in area and position to the electrodes. The indifferent layers are converted to a conductive state for example, by chemical conversion and used as such or are removed and replaced by metal or conductive material. One example in which the indifferent layers comprise nickel oxide involves stacking layers of green ceramic coated with nickel oxide in the desired electrode pattern sintering the stacked, layers to produce a monolith reducing the nickel oxide in the, monolith to …

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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 March 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 1974
GrantedMarch 24, 1981
Term endedMarch 24, 1998
Patent numberCA 1098186 A
Classification (IPC)H01G4/12 +1 more

Timeline

Timeline From CIPO dates

19751978198119841987199019931996Application filedMay 6, 1974Patent grantedMarch 24, 1981Term endedMarch 24, 1998

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