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Expired Canadian patentCanada

Method and apparatus for making bundling means

CA 1112151 A · Owner: Joy Manufacturing Company · Inventors: Vandyke, Harry L.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Apparatus for fabricating article bundling means including blade means for establishing a substantially continuous helical slit in an elongated resilient tubular member and support means for supporting the elongated tubular member while establishing relative movement between the blade means and the elongated tubular member. The support means may include rollers. The blade means may be adjustable so as to permit variation in the pitch of the helical slit.

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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 November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 1, 1979
GrantedNovember 10, 1981
Term endedNovember 10, 1998
Patent numberCA 1112151 A
Classification (IPC)B26D3/16

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedMay 1, 1979Patent grantedNov 10, 1981Term endedNov 10, 1998

Sources & verification

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