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Expired Canadian patentCanada

Storage bin lid or cover closing and opening mechanism

CA 1290913 C · Owner: Koenders, Wilfred · Inventors: Koenders, Wilfred

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

Lids or covers for relatively small storage bind conventionally are hinged by one side thereof to the rim of the opening and are open and closed by remote linkage and/or cables extending from the lids to a convenient location. When larger lids are used on relatively large storage bins, not only are they relatively heavy and thus difficult to actuate but often high winds will either make closing and opening more difficult but also there is always the possibility that severe structural damage can occur to the hinge mechanism. The present device includes linkage extending between the underside of the lid toward the front or leading side thereof and hinge to the collar in diametrically opposite …

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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 16, 1988
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1290913 C
Classification (IPC)E04B7/00 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMay 16, 1988Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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