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Expired Canadian patentCanada

Production tieback connector

CA 1284619 C · Owner: Cameron Iron Works Usa, Inc. · Inventors: Abreo, William A. Jr.

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

A subsea tieback connector including an annular body having an external downwardly facing shoulder with high pressure gasket type sealing means therein a sleeve, positioned within said annular body and having means preventing relative rotation between the sleeve and the body, a lock ring, an actuator ring threaded into said sleeve and having its lower end in engagement with an internal upwardly facing shoulder on said annular body whereby rotation of said actuating ring causes said lock ring to be set and then tensions said sleeve to load the connection.

Read the whole patent

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 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 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.
FiledJanuary 12, 1988
GrantedJune 4, 1991
Term endedJune 4, 2008
Patent numberCA 1284619 C
Classification (IPC)F16L37/08 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedJan 12, 1988Patent grantedJune 4, 1991Term endedJune 4, 2008

Sources & verification

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