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Expired Canadian patentCanada

Ice creeper

CA 69554 A · Owner: Wentzell, Lewis P. · Inventors: Wentzell, Lewis P.

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 November 30, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1917.
  • 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 14, 1900
GrantedNovember 30, 1900
Term endedNovember 30, 1917
Patent numberCA 69554 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190119031905190719091911191319151917Application filedNov 14, 1900Patent grantedNov 30, 1900Term endedNov 30, 1917

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

Cross-check elsewhere

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.