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Expired Canadian patentCanada

Pneumatic tire

CA 187159 A · Owner: Wenzel, Louis Jr. · Inventors: Wenzel, Louis Jr.

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 October 22, 1918. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 1935.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 4, 1918
GrantedOctober 22, 1918
Term endedOctober 22, 1935
Patent numberCA 187159 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191919211923192519271929193119331935Application filedFeb 4, 1918Patent grantedOct 22, 1918Term endedOct 22, 1935

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.