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Expired Canadian patentCanada

Mechanical spacer for towed acoustic array

CA 1214404 A · Owner: Britoil Public Limited Company · Inventors: Sykes, Christopher G.; Cameron, Neil W.; Attenborough, Frank R.

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

Abstract of the Disclosure, A mechanical spacer for locating electrical cables and strain ropes within the outer sheath of a towed acoustic array. The spacer has arcuate strip sections 10 joined by intervening portions 11 which form radially outwardly facing U-shaped recesses 12. Electrical cables are laid loosely in the centre part of the spacer located, if required by projecting support webs 15. Strain ropes are secured in the recesses 12 by spring clips (not shown). Resilient tubular structures 14 are formed on the web sections 10 to locate the spacer within the towed array sheath 20.

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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 November 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 18, 1984
GrantedNovember 25, 1986
Term endedNovember 25, 2003
Patent numberCA 1214404 A
Classification (IPC)F16L3/22 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedMay 18, 1984Patent grantedNov 25, 1986Term endedNov 25, 2003

Sources & verification

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