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Expired Canadian patentCanada

Sign construction

CA 1205288 A · Owner: Dobson, Charles E. · Inventors: Dobson, Charles E.

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

A sign comprises sign plates arranged edge-to-edge between a pair of mounting bars of L-shape having a rear, limb for mounting to a supporting surface and a side limb which conceals the ends of the plates. At least some of the plates have rearwardly directed limbs which are a push fit on forwardly projecting elements carried by base elements slidably engaged in restricted mouth channels formed on the rear limbs of the mounting bars. The top and bottom plates have extensions which conceal the mountings and end caps plug into box sections on the side limbs of the mounting bars to conceal the ends of those limbs and the ends of the plate extensions.

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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 June 3, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 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.
FiledOctober 26, 1982
GrantedJune 3, 1986
Term endedJune 3, 2003
Patent numberCA 1205288 A
Classification (IPC)G09F7/16 +1 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedOct 26, 1982Patent grantedJune 3, 1986Term endedJune 3, 2003

Sources & verification

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