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Expired Canadian patentCanada

Scissor jack stand

CA 1304350 C · Owner: Hein-Werner Corporation · Inventors: Liegel, Reinald D.; Sabel, Garry J.

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

An adjustable support device comprising a first elongated member having an upper end a, second elongated member having an upper end a, mechanism for connecting the first member to the second member such that the upper ends of the first and second members are vertically, adjustably movable in response to movement of the first elongated member with respect to the second elongated member and a, ratch connected between a first point located on the first member and a second point located on the second member for releasably securing the first and second points in spaced relationship and for selectively varying the spacing between the first and second points.

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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 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
  • 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 4, 1987
GrantedJune 30, 1992
Term endedJune 30, 2009
Patent numberCA 1304350 C
Classification (IPC)B66F3/22

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 4, 1987Patent grantedJune 30, 1992Term endedJune 30, 2009

Sources & verification

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