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Expired Canadian patentCanada

Bolt anchor

CA 188196 A · Owner: Newhall, Henry B. · Inventors: Pleister, Henry W.

CIPO record

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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 January 7, 1919. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 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.
FiledNovember 29, 1917
GrantedJanuary 7, 1919
Term endedJanuary 7, 1936
Patent numberCA 188196 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1918192019221924192619281930193219341936Application filedNov 29, 1917Patent grantedJan 7, 1919Term endedJan 7, 1936

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.