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Expired Canadian patentCanada

Apparatus for reefing sails on a boat and specially designed boom including such an apparatus

CA 1253747 A · Owner: S.A.R.L. Isomat · Inventors: Du Temple De Rougemont, Christian

CIPO record

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Abstract From the Canadian patent

Apparatus for reefing sails on a boat and specially-designed boom including such an apparatus. The invention refers to sail boats. The hollow boom extrusion (8) houses at least one traveller block (26) with two pulley wheels (34 36), over which pass the reefing leech line (34) and the reefing luff line (44). The apparatus makes it possible to take one or more reefs in the sail (10) simply by pulling on the free and (54) of the reefing luff line (44) which leads into the cockpit of the boat. Figure 1.

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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 May 9, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 9, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 11, 1985
GrantedMay 9, 1989
Term endedMay 9, 2006
Patent numberCA 1253747 A
Classification (IPC)B63H9/10

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 11, 1985Patent grantedMay 9, 1989Term endedMay 9, 2006

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