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Expired Canadian patentCanada

Steam plant

CA 195597 A · Owner: The Aktiebolaget Vaporackumulator · Inventors: Ruths, Johannes Carl

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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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.

Google PatentsCIPO record

Why it's free to use

  • Granted December 30, 1919. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1936.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 22, 1916
GrantedDecember 30, 1919
Term endedDecember 30, 1936
Patent numberCA 195597 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1917191919211923192519271929193119331935Application filedSep 22, 1916Patent grantedDec 30, 1919Term endedDec 30, 1936

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.com

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