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Expired Canadian patentCanada

Milk sterilizing apparatus

CA 185899 A · Owner: Fremlin, Walter Thomas · Inventors: Rogers, Francis Heron; Fremlin, Walter Thomas

CIPO record

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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.

Why it's free to use

  • Granted August 6, 1918. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 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.
FiledAugust 16, 1917
GrantedAugust 6, 1918
Term endedAugust 6, 1935
Patent numberCA 185899 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191819201922192419261928193019321934Application filedAug 16, 1917Patent grantedAug 6, 1918Term endedAug 6, 1935

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.