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Expired Canadian patentCanada

Compressed air enunciator for photographs and gramophones

CA 120221 A · Owner: Joly, Henry · Inventors: Joly, Henry

CIPO record

Overview

Drawings and full text

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 August 31, 1909. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 31, 1926.
  • 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 6, 1906
GrantedAugust 31, 1909
Term endedAugust 31, 1926
Patent numberCA 120221 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1907190919111913191519171919192119231925Application filedDec 6, 1906Patent grantedAug 31, 1909Term endedAug 31, 1926

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.