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Expired Canadian patentCanada

Method of making solar cell contacts

CA 2584073 C · Owner: Ferro Corporation · Inventors: Pham, Tung; Kim, Steve S.; Khadilkar, Chandrashekhar S.

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Abstract From the Canadian patent

Formulations and methods of making solar cells are disclosed. In general the , invention presents a solar cell contact made from a mixture wherein the mixture comprises a solids portion and an organic portion wherein the solids , portion comprises from about 85 to about 99 wt% of silver and from about 1 to , about 15 wt% of a glass component wherein the glass component comprises from about 15 to about 75 mol% PbO, and from about 5 to about 50 mol% SiO2 and , preferably with no B2O3.

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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 October 14, 2005 and granted August 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 14, 2005
GrantedAugust 14, 2012
Term endedOctober 14, 2025
Patent numberCA 2584073 C
Classification (IPC)H01L31/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedOct 14, 2005Patent grantedAug 14, 2012Term endedOct 14, 2025

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