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Expired Canadian patentCanada

Ultrasonic bonding apparatus

CA 1198349 A · Owner: The Procter & Gamble Company · Inventors: Schaefer, Jean E.

CIPO record

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Abstract From the Canadian patent

Jean Edward Schaefer ABSTRACT, An improved ultrasonic bonding apparatus for pattern bonding juxtaposed laminae with a pattern of discrete bonds defined by a multiplicity of discrete pattern protuberances disposed on an anvil as the laminae are forwarded in the machine direction while fixedly associated with the discrete pattern protuberances. In such apparatus having the tip of an ultrasonic transducer biased towards its anvil surface, the discrete pattern protuberances are so configured and disposed on the anvil in its machine direction to obviate cobblestoning of the transducer with respect to the anvil as a patterned portion thereof is moved past the transducer tip; and/or the discrete …

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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 24, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 25, 1983
GrantedDecember 24, 1985
Term endedDecember 24, 2002
Patent numberCA 1198349 A
Classification (IPC)B29C65/08 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 25, 1983Patent grantedDec 24, 1985Term endedDec 24, 2002

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