Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for monitoring location of fetus

CA 1331210 C · Owner: Bellinson, Susan A. · Inventors: Bellinson, Susan A.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A method and apparatus for monitoring the location of a fetus in a birth canal during labor. The conductors of a fetal monitor probe, such as a fetal heartbeat monitor electrode, are marked with calibration means corresponding to predetermined distances from a babyward end of the probe. The babyward end of the probe is attached to the baby. During labor the position and progress of the fetus in the birth canal may be inferred by observing the calibration means relative to the outer end of the birth canal.

Read the whole patent

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 August 2, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 2, 2011.
  • 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 31, 1989
GrantedAugust 2, 1994
Term endedAugust 2, 2011
Patent numberCA 1331210 C
Classification (IPC)A61B5/02 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedMarch 31, 1989Patent grantedAug 2, 1994Term endedAug 2, 2011

Sources & verification

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