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Expired Canadian patentCanada

Endometrium coagulating apparatus and surgical method for thermal destruction of the endometrium

CA 2102411 C · Owner: Goldrath, Milton H. · Inventors: Goldrath, Milton H.

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

Apparatus and surgical procedures are provided for completely coagulating endometrial tissue of the uterus by means of heated liquid in the distended uterus under direct view of a thermally insulated hysteroscope or under indirect view fluoroscopically using a thermally insulated hysterographic cannula and a radiopaque heated liquids.

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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

  • Filed May 4, 1992 and granted June 10, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2014.
  • 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 4, 1992
GrantedJune 10, 2003
Term endedMay 4, 2012
Patent numberCA 2102411 C
Classification (IPC)A61F7/12 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 4, 1992Patent grantedJune 10, 2003Term endedMay 4, 2012

Sources & verification

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