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Expired Canadian patentCanada

Automatic fluid filling device for batteries

CA 1066769 A · Owner: Outboard Marine Corporation · Inventors: Bandemor, Royal F.

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 an automatic fluid filling device for maintaining fluid at a desired level in one or more battery cells each having a cell opening. The device comprises a plurality of members each removably insertable into a battery cell, and each including wall means having a first portion sealingly engaging a battery cell opening and also having a second portion located above the first portion, which second portion partially defines a generally air-tight chamber located above the battery cell opening, which second portion also includes an aperture and a removable cap which sealingly engages the aperture for allowing access to the fluid in the battery cell. The wall means further …

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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 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 20, 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—
GrantedNovember 20, 1979
Term endedNovember 20, 1996
Patent numberCA 1066769 A
Classification (IPC)H01M2/36

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 20, 1979Term endedNov 20, 1996

Sources & verification

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