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Expired Canadian patentCanada

Solar control glass assembly and method of making same

CA 1333044 C · Owner: Libbey-Owens-Ford Co. · Inventors: Goodman, Ronald D.

CIPO record

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

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Abstract From the Canadian patent

A glass assembly includes a glass substrate having an induced transmission filter adhered to one surface thereof. The filter includes at least one coating formed of a layer of reflective material between two layers of dielectric material. The reflective material can be one of aluminum silver, gold and copper. The dielectric material can be one of zinc oxide, indium oxide, titanium dioxide and tin oxide. The coating can be applied to one side of a plastic carrier sheet and an abrasion resistant material can be applied to the other side of the carrier sheet to form a film. The film can be adhered directly to the glass or to an intermediate plastic sheet. In an alternate embodiment the coating …

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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 November 15, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 15, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 18, 1987
GrantedNovember 15, 1994
Term endedNovember 15, 2011
Patent numberCA 1333044 C
Classification (IPC)C03C17/36 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedAug 18, 1987Patent grantedNov 15, 1994Term endedNov 15, 2011

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