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Expired Canadian patentCanada

Smoke preventing and fuel apparatus

CA 123993 A · Owner: Storey, William John · Inventors: Storey, Gilbert; Storey, William John

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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 February 22, 1910. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 22, 1927.
  • 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, 1908
GrantedFebruary 22, 1910
Term endedFebruary 22, 1927
Patent numberCA 123993 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1909191119131915191719191921192319251927Application filedSep 22, 1908Patent grantedFeb 22, 1910Term endedFeb 22, 1927

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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