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Expired Canadian patentCanada

Apparatus for attaching a withdrawal tape to a tampon

CA 1190902 A · Owner: Hahn (Dr. Carl), G.M.B.H. · Inventors: Friese, Axel

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A device for attaching a withdrawal cord of a tampon in the form of a wound spiral, and in particular a tampon for female hygiene, to the withdrawal end thereof. The device comprises a centering mandrel which is movable coaxially to a cylindrical mold which is to receive the tampon. The mandrel is surrounded by an axially movable push-off ram for the withdrawal cord which is wound around the centering mandrel, the diameter of which is smaller than the clear diameter of the mold. The mold which at, the end away from the centering mandrel is associated with an abutment for the tampon, wherein the front end of the push-off ram is surrounded by a driver for the withdrawal cord. The driver is …

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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 July 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 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.
FiledSeptember 2, 1982
GrantedJuly 23, 1985
Term endedJuly 23, 2002
Patent numberCA 1190902 A
Classification (IPC)A41H43/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedSep 2, 1982Patent grantedJuly 23, 1985Term endedJuly 23, 2002

Sources & verification

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