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Ritter Co Inc

Ritter Co
Active Patents
0
Total Holdings
13

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3173207A Air driven turbine dental handpiece and air and water conne… Expired / Lapsed 1959-12-28 1965-03-16 2 Details
US2949107A Apparatus for determining the vitality of teeth Expired / Lapsed 1953-04-06 1960-08-16 0 Details
US2941776A Counterbalancing mechanism Expired / Lapsed 1957-05-13 1960-06-21 0 Details
US2840429A Medical examination, operating and X-ray table Expired / Lapsed 1953-10-01 1958-06-24 0 Details
US2780277A Vertically adjustable pedestal stool Expired / Lapsed 1952-06-27 1957-02-05 0 Details
US2700524A Counterbalanced supporting arm Expired / Lapsed 1951-06-22 1955-01-25 0 Details
US2681408A Syringe Expired / Lapsed 1952-04-08 1954-06-15 0 Details
US2572295A Controller for electric systems Expired / Lapsed 1947-03-20 1951-10-23 0 Details
US2520455A Surgical table with hydraulic adjusting system Expired / Lapsed 1945-06-20 1950-08-29 0 Details
US2500095A Equipment stand Expired / Lapsed 1945-03-14 1950-03-07 0 Details
US2494058A Lighting unit Expired / Lapsed 1946-08-01 1950-01-10 0 Details
US2415534A Liquid mixing device Expired / Lapsed 1944-02-18 1947-02-11 0 Details
US2395674A Automatic container filler Expired / Lapsed 1943-09-27 1946-02-26 0 Details