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Expired Canadian patentCanada

Device for the assembly or mechanical reinforcement and anti-corrosion treatment of elements of submerged structures and assembly and treatment process associated with it

CA 1292853 C · Owner: Lazare, Francois · Inventors: Genet, Roger; Lazare, Francois

CIPO record

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Abstract From the Canadian patent

A device for the fixed assembly or mechanical reinforcement and anti-corrosion treatment of component elements of submerged structures, such as branch junctions com-, posed of a main element (1) and of at least one secondary element (2), one end of which is fixed to the surface of the said element (1), comprises a collar (3 3') fas-, tened to at least one of the secondary elements (2) laterally or at its end, the said collar being shaped so as to surround the main element (1) with some play the, collar (3, 3') and the portions of elements (1) and (2) interacting with this being set in a mass of elastic polymerized material (4). Figure 2.

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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 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 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.
FiledNovember 30, 1987
GrantedDecember 10, 1991
Term endedDecember 10, 2008
Patent numberCA 1292853 C
Classification (IPC)E04B1/38

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedNov 30, 1987Patent grantedDec 10, 1991Term endedDec 10, 2008

Sources & verification

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