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Expired Canadian patentCanada

Explosive filling

CA 167202 A · Owner: Sokolowski, Ernest · Inventors: Sokolowski, Ernest

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.

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Why it's free to use

  • Granted January 25, 1916. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 25, 1933.
  • 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 19, 1912
GrantedJanuary 25, 1916
Term endedJanuary 25, 1933
Patent numberCA 167202 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1913191619191922192519281931Application filedAug 19, 1912Patent grantedJan 25, 1916Term endedJan 25, 1933

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.