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Expired Canadian patentCanada

Stereoscope

CA 176406 A · Owner: Disney, James Labert · Inventors: Disney, James Labert

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 April 17, 1917. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 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 6, 1916
GrantedApril 17, 1917
Term endedApril 17, 1934
Patent numberCA 176406 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191719191921192319251927192919311933Application filedDec 6, 1916Patent grantedApril 17, 1917Term endedApril 17, 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.