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Expired Canadian patentCanada

Casing slip gague

CA 1293374 C · Owner: Western Valve Services Inc. · Inventors: Diegel, Brad

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

There is described a gauge for determining the position of a pipe string and/or the position of casing slips in a casing bowl. The device has a flat metal plate like body with a pipe string engaging nose at one end and a flat casingflange engaging undersurface. An engaging pin is slidingly positioned on the underside of the body to engage in the ring gasket groove and is lockable to the body to position it. An adjustable slip probe extends beneath the gauge body. A dial indicator may be provided.

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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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 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.
FiledJune 14, 1988
GrantedDecember 24, 1991
Term endedDecember 24, 2008
Patent numberCA 1293374 C
Classification (IPC)G01B5/14 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedJune 14, 1988Patent grantedDec 24, 1991Term endedDec 24, 2008

Sources & verification

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