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Expired Canadian patentCanada

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CA 588317 A · Owner: Levitt, Marvin R. · Inventors: Levitt, Marvin R.

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.

Why it's free to use

  • Granted December 8, 1959. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 1976.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 4, 1958
GrantedDecember 8, 1959
Term endedDecember 8, 1976
Patent numberCA 588317 A
Classification (IPC)B65D5/00 +2 more

Timeline

Timeline From CIPO dates

195919611963196519671969197119731975Application filedJan 4, 1958Patent grantedDec 8, 1959Term endedDec 8, 1976

Sources & verification

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