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Expired Canadian patentCanada

Storable boom attachment for a construction machine

CA 1097591 A · Owner: Sornsin, Earl W. · Inventors: Sornsin, Earl W.

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

Abstract of Disclosure, This invention relates to a storable hoisting gin or boom member attachment for bucket loaders which provides an arrangement for quickly and easily moving a boom member or gin pole into to working relationship with respect to a bucket loader so that this type of construction vehicle may be used for lifting and lowering objects in construction work. The attachment consists of supports welded to the top side of the bucket each, support including a pivot flange and a retaining flange to which the boom or gin is attached.Each pivot flange permits pivoting of the boom member to a collapsed position on an opposite support on the top side of the bucket for storage purposes.

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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 March 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 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.
FiledMay 31, 1979
GrantedMarch 17, 1981
Term endedMarch 17, 1998
Patent numberCA 1097591 A
Classification (IPC)B66C23/44 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedMay 31, 1979Patent grantedMarch 17, 1981Term endedMarch 17, 1998

Sources & verification

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