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Expired Canadian patentCanada

Openable bottom loading adapter for transport tank

CA 1055464 A · Owner: Defrees, Joseph H. · Inventors: Defrees, Joseph H.

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

A fabricated adapter valve for mounting on the exterior of a transportation tank for liquid, such as for instance gasoline or oil, providing for coupling with a compatible loading coupler of a loading island, for loading the liquid into the transportation tank. The adapter valve possesses a configuration defined by The American Petroleum Institute for universal coupling with loading coupler of a loading station and in-, cludes a manually operable actuator for opening the poppet of the adapter valve, together with a sinuous-like cam configuration on the actuator for holding the poppet in predetermined open positions.

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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 29, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMay 29, 1979
Term endedMay 29, 1996
Patent numberCA 1055464 A
Classification (IPC)B67C11/04 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 29, 1979Term endedMay 29, 1996

Sources & verification

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