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Expired Canadian patentCanada

Liquid tank cap having a vent

CA 1110582 A · Owner: Outboard Marine Corporation · Inventors: Reineck, Lester W.; Fields, Ernest E.

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

Disclosed herein is a cap for a liquid tank having a filler neck, such as a fuel tank for an outboard motor which cap includes a hollow body having a top wall portion for closing the filler neck and a depending annular flance for releasably engaging the filler neck. The interior of the tank is vented to the atmosphere through one or more vent ports located in the top wall portion and the vent port(s) is selectively opened and closed by a closure member including a shank threadably mounted on the top wall portion and a cover portion for opening and closing the vent port when the closure member is turned in opposite directions. A dish-shaped baffle disposed inside the cap body in spaced …

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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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
  • 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 11, 1978
GrantedOctober 13, 1981
Term endedOctober 13, 1998
Patent numberCA 1110582 A
Classification (IPC)B65D51/16 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMay 11, 1978Patent grantedOct 13, 1981Term endedOct 13, 1998

Sources & verification

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