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Expired Canadian patentCanada

Laminated paper load spacer and support

CA 1161801 A · Owner: Fiber Tech, Inc. · Inventors: Tisdale, Lucien E.

CIPO record

Overview

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

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Abstract From the Canadian patent

A load spacer or support constructed of laminated paper and adhesive material to form a generally "W" shape load spacer or support having a full depth slot throughout the length thereof to accept a tie strap and two trapezoidal shaped hollow load cells defining the slot with the load cells being interconnected by a top sheet or panel having depending flanges along each side edge thereof overlapping and secured to the outer surfaces of the load cells which provides a tension force in a horizontal plane to counteract deformation of the cells under compression. The load spacer support or, batten may be employed in various orientations with respect to stacks of flat sheets of material, such as …

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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 February 7, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 15, 1981
GrantedFebruary 7, 1984
Term endedFebruary 7, 2001
Patent numberCA 1161801 A
Classification (IPC)B65D19/00 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedJan 15, 1981Patent grantedFeb 7, 1984Term endedFeb 7, 2001

Sources & verification

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