LITTLEFORD,ELIZABETH H.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5054500 Catheter guiding and positioning methodExpiredApr 13, 89Oct 08, 91[A61B]
4834093 Dilation catheter and methodExpiredFeb 03, 86May 30, 89[A61N]
4552157 Open curve, atrial "J" electrodeExpiredJun 17, 82Nov 12, 85[A61N]
4401127 Stable electrodes for endocardial pacingExpiredFeb 03, 81Aug 30, 83[A61N]
4357947 Electrode and method for endocardial atrial pacingExpiredJul 14, 80Nov 09, 82[A61N]
4345606 Split sleeve introducers for pacemaker electrodes and the likeExpiredMar 24, 80Aug 24, 82[A61N]
4243050 Method for inserting pacemaker electrodes and the likeExpiredFeb 05, 79Jan 06, 81[A61N]

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