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Stromberg Carlson Corp

Stromberg
Active Patents
0
Total Holdings
30

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3588833A Interlaced dynamic data buffer Expired / Lapsed 1968-10-18 1971-06-28 0 Details
US3340366A Signal amplitude sequenced time division multiplex communic… Expired / Lapsed 1965-06-28 1967-09-05 2 Details
US3334331A Common series double comparison circuit for a time division… Expired / Lapsed 1964-06-09 1967-08-01 2 Details
US3312783A Signal amplitude sequenced time division multiplex communic… Expired / Lapsed 1964-08-07 1967-04-04 2 Details
US3307150A Queue store Expired / Lapsed 1962-11-16 1967-02-28 2 Details
US3307156A Information processing and display system Expired / Lapsed 1962-10-04 1967-02-28 6 Details
US3223977A Roll call generator Expired / Lapsed 1961-10-23 1965-12-14 2 Details
US2934606A Selector circuit Expired / Lapsed 1956-10-08 1960-04-26 0 Details
US2709204A Recording and reproducing apparatus and methods Expired / Lapsed 1949-10-28 1955-05-24 0 Details
US2694172A Direct current power supply Expired / Lapsed 1953-10-14 1954-11-09 0 Details
US2669606A Automatic toll trunking system Expired / Lapsed 1950-10-16 1954-02-16 0 Details
US2666008A Methods and apparatus for making conductive patterns of pre… Expired / Lapsed 1950-08-03 1954-01-12 2 Details
US2657276A Method and means for obtaining a predetermined phase shift … Expired / Lapsed 1949-12-22 1953-10-27 0 Details
US2657267A Telephone system coin control adapter and connector Expired / Lapsed 1949-03-11 1953-10-27 0 Details
US2656416A Line finder dual-allotter system Expired / Lapsed 1948-04-13 1953-10-20 0 Details
US2655562A Erasing head for magnetic recording Expired / Lapsed 1945-02-23 1953-10-13 0 Details
US2587697A Apparatus for testing amplifiers Expired / Lapsed 1949-10-28 1952-03-04 0 Details
US2574596A Ultrasonic distance-measuring system Expired / Lapsed 1948-04-06 1951-11-13 0 Details
US2562123A Automatic telephone system Expired / Lapsed 1947-08-22 1951-07-24 0 Details
US2536810A Method and apparatus for improving the low-frequency respon… Expired / Lapsed 1945-04-16 1951-01-02 0 Details
US2497411A Pulse transmission system Expired / Lapsed 1946-07-25 1950-02-14 0 Details
US2492850A Discharge initiating circuit Expired / Lapsed 1946-03-29 1949-12-27 0 Details
US2485405A Dipole microphone Expired / Lapsed 1944-04-21 1949-10-18 0 Details
US2474918A Ranging system Expired / Lapsed 1945-07-30 1949-07-05 0 Details
US2473208A Apparatus for linearizing saw-tooth waves Expired / Lapsed 1944-11-14 1949-06-14 0 Details
US2467486A Communication system Expired / Lapsed 1946-02-09 1949-04-19 0 Details
US2466216A Sound control system Expired / Lapsed 1947-06-13 1949-04-05 0 Details
US2466230A Pulse time modulation system Expired / Lapsed 1946-02-09 1949-04-05 0 Details
US2462532A Sound system which compensates for variable noise levels Expired / Lapsed 1947-06-13 1949-02-22 0 Details
US2411648A Method and apparatus for generating impulses Expired / Lapsed 1944-04-21 1946-11-26 0 Details