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LITTLEFORD ELIZABETH H

LITTLEFORD
Active Patents
0
Total Holdings
6

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US5054500A Catheter guiding and positioning method Expired / Lapsed 1989-04-13 1991-10-08 9 Details
US4834093A Dilation catheter and method Expired / Lapsed 1986-02-03 1989-05-30 30 Details
US4552157A Open curve, atrial "J" electrode Expired / Lapsed 1982-06-17 1985-11-12 7 Details
US4401127A Stable electrodes for endocardial pacing Expired / Lapsed 1981-02-03 1983-08-30 15 Details
US4345606A Split sleeve introducers for pacemaker electrodes and the l… Expired / Lapsed 1980-03-24 1982-08-24 12 Details
US4166469A Apparatus and method for inserting an electrode Expired / Lapsed 1977-12-13 1979-09-04 20 Details