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Expired Canadian patentCanada

System and method for protecting the environment in a battery production room

CA 1101054 A · Owner: General Battery Corporation · Inventors: Eberle, William J.

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

Abstract of the Disclosure, A system is provided whereby the vapors that are given off during wet-cell battery formation are drawn directly from the batteries through openings in the cells thereof into, conduits that are readily accessible to an operator and with, the vapors further being drawn into a duct through which they may be delivered for neutralizing, for eventual discharge to atmosphere. A novel nozzle is provided capable of introduction onto the tops of any of the three different standard sized batteries during forming, which nozzles in addition to collecting vapors that are given off during wet-cell battery formation further collect a pre-selected amount of atmospheric gas for …

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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 12, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.
FiledNovember 18, 1977
GrantedMay 12, 1981
Term endedMay 12, 1998
Patent numberCA 1101054 A
Classification (IPC)H01M10/06

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedNov 18, 1977Patent grantedMay 12, 1981Term endedMay 12, 1998

Sources & verification

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