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Expired Canadian patentCanada

Self-aligning connector assembly

CA 1188719 A · Owner: Dril-Quip, Inc. · Inventors: Reimert, Larry E.

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

Connector apparatus includes a guide surface spaced from internal threads on one member for receiving external threads on a second member, whereby the two members may be threadedly engaged with the guide surface constraining relative orientation between the two members prior to threaded engagement to avoid cross-threading.

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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 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
  • 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 13, 1982
GrantedJune 11, 1985
Term endedJune 11, 2002
Patent numberCA 1188719 A
Classification (IPC)F16L15/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 13, 1982Patent grantedJune 11, 1985Term endedJune 11, 2002

Sources & verification

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