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Expired Canadian patentCanada

Ultrasonic method and apparatus for manufacturing brassiere tapes

CA 1113361 A · Owner: Cavitron Corporation · Inventors: Kuhl, Peter J.; Paschke, Richard H.; Clarke, Robert A.

CIPO record

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

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Abstract From the Canadian patent

Brassiere tapes having a body portion and a pair of overlapping tabs extending outwardly therefrom are manufactured by providing a continuous strip of the tape material having elements spaced therealong and layers at least in the body portion forming part thereof. The material is weldable with ultrasonic vibratory energy, and the tabs are separated physically from each other while simultaneously maintained in acoustical energy coupling relation to each other such that, the individual layers of material in the strip are welded together across the body portion of a tape defined thereby and the tabs are individually welded along an edge but not welded together when interposed between an …

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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 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 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.
FiledSeptember 7, 1977
GrantedDecember 1, 1981
Term endedDecember 1, 1998
Patent numberCA 1113361 A
Classification (IPC)A41F1/00 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedSep 7, 1977Patent grantedDec 1, 1981Term endedDec 1, 1998

Sources & verification

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