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Expired Canadian patentCanada

Instrument and method for inserting an intrauterine contraceptive device

CA 1110941 A · Owner: Ortho Pharmaceutical Corporation · Inventors: Holmes, Gordon W.

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

Abstract of the Disclosure, An instrument for inserting an intrauterine contraceptive device of the kind having one or more outwardly extending arms or protrusions is described. The insertion instrument comprising an inserter tube and coacting rod maintains the arm or arms of the device in an extended configuration during storage but quickly and facilely folds the arms of the device into a protective housing or sheath for insertion into the uterus and releases the device by a withdrawal of the protective housing. A uterine sound which may be employed with the insertion instrument is also described. -1-

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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 October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 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.
FiledMarch 6, 1978
GrantedOctober 20, 1981
Term endedOctober 20, 1998
Patent numberCA 1110941 A
Classification (IPC)A61F6/18

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMarch 6, 1978Patent grantedOct 20, 1981Term endedOct 20, 1998

Sources & verification

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