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Expired Canadian patentCanada

Lumber kiln

CA 180263 A · Owner: Sedman, Edward D. · Inventors: Sedman, Edward D.

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 November 6, 1917. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1934.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 30, 1916
GrantedNovember 6, 1917
Term endedNovember 6, 1934
Patent numberCA 180263 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191719191921192319251927192919311933Application filedDec 30, 1916Patent grantedNov 6, 1917Term endedNov 6, 1934

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.