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Expired Canadian patentCanada

Outrigger beam and jack construction

CA 1078810 A · Owner: Powerscreen Usc Inc. · Inventors: Hockensmith, John L.

CIPO record

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

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Abstract From the Canadian patent

An extensible outrigger construction comprises a tubular housing secured to a vehicle frame, having an outrigger beam telescoped into it. The outrigger beam comprises upper and lower horizontal plates with semi-circular cut-outs at their ends to receive the cylinder of the jack, a pair of vertical flange plates have surfaces on a diametrical plane of the cut-outs. A cap includes upper and lower horizontal plates with semi-circular cut-outs, and vertical flange plates engaging the first mentioned flange plates, the holding cap being secured by bolts through the flange plates. The jack cylinder has an upwardly facing shoulder that engages the bottom surfaces of the lower beam plate and the …

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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 June 3, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 3, 1980
Term endedJune 3, 1997
Patent numberCA 1078810 A
Classification (IPC)B66C23/80 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 3, 1980Term endedJune 3, 1997

Sources & verification

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