Stromberg Carlson Corp
StrombergActive Patents
0
Total Holdings
58
Patent Holdings
Filter in Explorer →| 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 |
| US3566193A | Printed circuit card arrangement with support frame and sup… | Expired / Lapsed | 1969-03-21 | 1971-02-23 | 26 | Details |
| US3542958A | Link circuit with high level ringing capability for electro… | Expired / Lapsed | 1967-08-22 | 1970-11-24 | 0 | Details |
| US3376465A | Color character display | Expired / Lapsed | 1964-10-16 | 1968-04-02 | 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 |
| US3331985A | Character generating system utilizing a cathode ray tube in… | Expired / Lapsed | 1964-07-17 | 1967-07-18 | 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 |
| US3274342A | Common channel communication system conference circuit | Expired / Lapsed | 1962-01-04 | 1966-09-20 | 2 | 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 |
| US2702831A | Ringing control circuit for telephone systems | Expired / Lapsed | 1953-01-02 | 1955-02-22 | 0 | Details |
| US2702879A | Rectifier network | Expired / Lapsed | 1951-05-21 | 1955-02-22 | 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 |
| US2659878A | Ranging system | Expired / Lapsed | 1948-03-04 | 1953-11-17 | 0 | 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 |
| US2619632A | Pulse communication system | Expired / Lapsed | 1948-04-23 | 1952-11-25 | 0 | Details |
| US2617931A | Pulse commutating ring counter circuit | Expired / Lapsed | 1950-04-17 | 1952-11-11 | 0 | Details |
| US2588915A | Means for obtaining predetermined phase shift characteristi… | Expired / Lapsed | 1949-12-22 | 1952-03-11 | 0 | Details |
| US2587697A | Apparatus for testing amplifiers | Expired / Lapsed | 1949-10-28 | 1952-03-04 | 0 | Details |
| US2584850A | Frequency-and voltage-stabilized oscillator | Expired / Lapsed | 1947-12-26 | 1952-02-05 | 0 | Details |
| US2584004A | Method and apparatus for automatically aligning electrical … | Expired / Lapsed | 1950-04-20 | 1952-01-29 | 0 | Details |
| US2580560A | Echo pulse system utilizing the first received echo for con… | Expired / Lapsed | 1947-05-17 | 1952-01-01 | 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 |
| US2560751A | Phase inversion circuits for cathode-ray tubes | Expired / Lapsed | 1949-01-11 | 1951-07-17 | 0 | Details |
| US2543534A | Automatic telephone system | Expired / Lapsed | 1947-01-09 | 1951-02-27 | 0 | Details |
| US2536816A | Pulse generator | Expired / Lapsed | 1946-05-29 | 1951-01-02 | 0 | Details |
| US2536804A | Delayed pulse circuit arrangement | Expired / Lapsed | 1945-06-29 | 1951-01-02 | 0 | Details |
| US2536810A | Method and apparatus for improving the low-frequency respon… | Expired / Lapsed | 1945-04-16 | 1951-01-02 | 0 | Details |
| US2512908A | Telephone switchboard mounting plate with plug-in components | Expired / Lapsed | 1947-10-16 | 1950-06-27 | 0 | Details |
| US2497182A | Power supply | Expired / Lapsed | 1948-01-23 | 1950-02-14 | 0 | Details |
| US2497411A | Pulse transmission system | Expired / Lapsed | 1946-07-25 | 1950-02-14 | 0 | Details |
| US2497166A | Parallel circuit arrangement for power tubes | Expired / Lapsed | 1944-06-06 | 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 |
| US2484352A | Pulse length discriminator | Expired / Lapsed | 1946-03-26 | 1949-10-11 | 0 | Details |
| US2474918A | Ranging system | Expired / Lapsed | 1945-07-30 | 1949-07-05 | 0 | Details |
| US2473194A | Power supply switching system | Expired / Lapsed | 1948-03-04 | 1949-06-14 | 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 |
| US2434069A | Electronically regulated power supply | Expired / Lapsed | 1944-02-07 | 1948-01-06 | 0 | Details |
| US2422565A | Intercommunicating telephone system | Expired / Lapsed | 1944-08-24 | 1947-06-17 | 0 | Details |
| US2411648A | Method and apparatus for generating impulses | Expired / Lapsed | 1944-04-21 | 1946-11-26 | 0 | Details |
| US2409586A | Automatic telephone system | Expired / Lapsed | 1944-08-24 | 1946-10-15 | 0 | Details |
| US2409588A | Telephone substation apparatus | Expired / Lapsed | 1944-06-27 | 1946-10-15 | 0 | Details |
| US2405930A | Synchronizing arrangement for locator systems | Expired / Lapsed | 1944-02-07 | 1946-08-13 | 0 | Details |