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Expired Canadian patentCanada

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CA 1106719 A · Owner: Wright Line Inc. · Inventors: Hedstrom, Norman A.; Moriarty, Frederick J.; Bogren, Robert G.

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 novel loose-leaf holder is provided for binding documents such as multi-leaf computer printouts and mounting the same in a suspeneion-filing and/or storing system. The holder is of the type described in U.S. Patent No. 4,056,296 and comprises a plastic body which is molded as an integral unit and comprises two side sections which are connected together by a hinge section so that they can be swung toward and away from one another. The improvement comprises document mounting pins carried by one side section and engageable by the other side section one or more of the pins being adjustably mounted on the one side and movable toward and away from the other pins. Manually releasable locking …

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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 August 11, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 1998.
  • 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 29, 1978
GrantedAugust 11, 1981
Term endedAugust 11, 1998
Patent numberCA 1106719 A
Classification (IPC)B42F13/14 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedNov 29, 1978Patent grantedAug 11, 1981Term endedAug 11, 1998

Sources & verification

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