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Expired Canadian patentCanada

Bricking ring

CA 1212068 A · Owner: Clayburn Refractories Inc. · Inventors: Trumbull, James L.; Gillam, William A.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The specification describes a bricking ring for use in positioning and temporarily retaining bricks in a circular overhead configuration. The bricking ring intended for use in lining kilns comprises a plurality of arcuate segments forming a semi-circular configuration. The segments are pivotally interconnected, and are attached to a central rigid support by means of arms the length of which is adjustable. Thus, the radius of the semi-circular configuration may be adjusted so that the bricking ring may be used in different diameter kilns or when the kiln is lined with a double layer of bricks.

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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 September 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 2003.
  • 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 8, 1983
GrantedSeptember 30, 1986
Term endedSeptember 30, 2003
Patent numberCA 1212068 A
Classification (IPC)E04G11/20 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedAug 8, 1983Patent grantedSep 30, 1986Term endedSep 30, 2003

Sources & verification

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