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Expired Canadian patentCanada

Packing for pistons

CA 64987 A · Owner: Roadman, William · Inventors: Roadman, William; Byers, Lemon

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 November 18, 1899. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1916.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 30, 1899
GrantedNovember 18, 1899
Term endedNovember 18, 1916
Patent numberCA 64987 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190019021904190619081910191219141916Application filedAug 30, 1899Patent grantedNov 18, 1899Term endedNov 18, 1916

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.