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Expired Canadian patentCanada

Visual marker for use in indicating or identifying rolled drawings or the like

CA 1254740 A · Owner: Scouten, Raymond E. · Inventors: Scouten, Raymond 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 visual marker for indicating or identifying rolled drawings provides a marker member in the form of a flat disc with a boss on a rear surface of the disc. A wire loop has ends turned inwardly for receipt as a press-fit in a slot defined in the boss. The ends define an axis which can rotate within the slot so that a front face of the disc can either be positioned at right angles to the plane of the loop for presenting axially from the end of the rolled drawing or substantially in the plane of the loop for facing upwardly when the loop is positioned horizontally between planar sheet or for example, a stack of paper.

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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 May 30, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 7, 1985
GrantedMay 30, 1989
Term endedMay 30, 2006
Patent numberCA 1254740 A
Classification (IPC)G09F3/00

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedNov 7, 1985Patent grantedMay 30, 1989Term endedMay 30, 2006

Sources & verification

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