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Associated Electric Laboratories Inc

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Active Patents
0
Total Holdings
120

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2329022A Call transmitter Expired / Lapsed 1941-10-01 1943-09-07 0 Details
US2326388A Impulse transmitting device Expired / Lapsed 1940-11-02 1943-08-10 0 Details
US2301337A Testing and indicating apparatus Expired / Lapsed 1940-11-16 1942-11-10 0 Details
US2299620A Acoustic apparatus Expired / Lapsed 1938-08-19 1942-10-20 0 Details
US2296936A Airport lighting and traffic control system Expired / Lapsed 1939-09-16 1942-09-29 0 Details
US2297365A Telephone system Expired / Lapsed 1939-07-08 1942-09-29 0 Details
US2294863A Electrical storage and delay circuits Expired / Lapsed 1941-03-29 1942-09-01 0 Details
US2291496A Telephone system Expired / Lapsed 1940-02-01 1942-07-28 0 Details
US2289896A Telephone system Expired / Lapsed 1940-04-11 1942-07-14 0 Details
US2288789A Telephone system Expired / Lapsed 1940-03-29 1942-07-07 0 Details
US2282405A Transmission system Expired / Lapsed 1939-08-14 1942-05-12 0 Details
US2282131A Electrical signaling system Expired / Lapsed 1940-11-18 1942-05-05 0 Details
US2277296A Hand telephone mounting Expired / Lapsed 1940-09-05 1942-03-24 0 Details
US2277280A Hand telephone mounting Expired / Lapsed 1940-08-31 1942-03-24 0 Details
US2275147A Carrier current system Expired / Lapsed 1940-04-22 1942-03-03 0 Details
US2274760A Telephone system Expired / Lapsed 1939-06-30 1942-03-03 0 Details
US2274715A Calling apparatus Expired / Lapsed 1939-06-30 1942-03-03 0 Details
US2275146A Carrier current control system Expired / Lapsed 1939-04-01 1942-03-03 0 Details
US2272475A Telephone system Expired / Lapsed 1939-06-12 1942-02-10 0 Details
US2271305A Traffic signaling system Expired / Lapsed 1940-08-31 1942-01-27 0 Details
US2267987A Signaling system Expired / Lapsed 1938-12-19 1941-12-30 0 Details
US2265151A Telephone system Expired / Lapsed 1940-04-11 1941-12-09 0 Details
US2264311A Transmission system Expired / Lapsed 1939-08-14 1941-12-02 0 Details
US2264197A Thermionic amplifier Expired / Lapsed 1940-05-17 1941-11-25 0 Details
US2254113A Telephone system Expired / Lapsed 1938-09-26 1941-08-26 0 Details
US2249486A Telephone system Expired / Lapsed 1939-12-29 1941-07-15 0 Details
US2248937A Transmitting and receiving system Expired / Lapsed 1929-07-15 1941-07-15 0 Details
US2241105A Sound translating device Expired / Lapsed 1938-05-24 1941-05-06 0 Details
US2236822A Signaling system Expired / Lapsed 1936-11-21 1941-04-01 0 Details
US2234684A Stock quotation system Expired / Lapsed 1939-02-01 1941-03-11 0 Details
US2222131A Automatic switching system Expired / Lapsed 1938-07-05 1940-11-19 0 Details
US2215860A Mounting for hand telephones Expired / Lapsed 1939-04-14 1940-09-24 0 Details
US2214914A Telephone system Expired / Lapsed 1938-06-24 1940-09-17 0 Details
US2214245A Telephone system Expired / Lapsed 1939-04-28 1940-09-10 0 Details
US2214253A Traffic signaling system Expired / Lapsed 1938-10-31 1940-09-10 0 Details
US2214256A Telephone system Expired / Lapsed 1938-10-03 1940-09-10 0 Details
US2214199A Traffic signaling system Expired / Lapsed 1937-11-26 1940-09-10 0 Details
US2211927A Telegraph switching system Expired / Lapsed 1939-02-17 1940-08-20 0 Details
US2211165A Electrically controlled accounting system Expired / Lapsed 1937-05-24 1940-08-13 0 Details
US2207513A Electrical testing apparatus Expired / Lapsed 1938-08-29 1940-07-09 0 Details
US2206325A Switching apparatus Expired / Lapsed 1938-12-19 1940-07-02 0 Details
US2203557A Switching system Expired / Lapsed 1938-07-28 1940-06-04 0 Details
US2200817A Automatic telephone system Expired / Lapsed 1937-01-11 1940-05-14 0 Details
US2197966A Telephone signaling system Expired / Lapsed 1938-01-06 1940-04-23 0 Details
US2193973A Telephone system Expired / Lapsed 1938-04-04 1940-03-19 0 Details
US2192242A Stock quotation system Expired / Lapsed 1931-08-07 1940-03-05 0 Details
US2192217A Stock quotation system Expired / Lapsed 1930-09-29 1940-03-05 0 Details
US2184101A Circuit controlling device Expired / Lapsed 1938-02-28 1939-12-19 0 Details
US2183656A Automatic telephone system Expired / Lapsed 1938-02-12 1939-12-19 0 Details
US2177079A Automatic telephone system Expired / Lapsed 1936-06-19 1939-10-24 0 Details
US2157848A Telephone system Expired / Lapsed 1936-12-28 1939-05-09 0 Details
US2157860A Signaling system Expired / Lapsed 1936-12-23 1939-05-09 0 Details
US2156278A System of carrier current transmission Expired / Lapsed 1936-04-25 1939-05-02 0 Details
US2155176A Telephone system Expired / Lapsed 1936-11-07 1939-04-18 0 Details
US2149646A Automatic telephone system Expired / Lapsed 1936-10-01 1939-03-07 0 Details
US2137507A Automatic switching apparatus Expired / Lapsed 1937-06-11 1938-11-22 0 Details
US2137518A Telephone system Expired / Lapsed 1937-05-15 1938-11-22 0 Details
US2136559A Temperature control system Expired / Lapsed 1934-05-09 1938-11-15 0 Details
US2129741A Telegraph switching system Expired / Lapsed 1935-08-09 1938-09-13 0 Details
US2129743A Automatic auditing and tabulating system Expired / Lapsed 1928-05-07 1938-09-13 0 Details
US2122464A Electrical apparatus Expired / Lapsed 1932-01-08 1938-07-05 0 Details
US2121163A Start-stop distributor system Expired / Lapsed 1933-07-10 1938-06-21 0 Details
US2103297A Stock-quotation system Expired / Lapsed 1931-03-26 1937-12-28 0 Details
US2103296A Transmitting and receiving system Expired / Lapsed 1930-04-19 1937-12-28 0 Details
US2100523A Automatic telephone system Expired / Lapsed 1935-12-16 1937-11-30 0 Details
US2099754A Calculating machine Expired / Lapsed 1932-03-25 1937-11-23 0 Details
US2096954A Stock quotation system Expired / Lapsed 1930-11-24 1937-10-26 0 Details
US2095730A Stock quotation system Expired / Lapsed 1929-12-11 1937-10-12 0 Details
US2094132A Telephone system Expired / Lapsed 1935-07-15 1937-09-28 0 Details
US2091108A Switch mechanism Expired / Lapsed 1935-10-14 1937-08-24 0 Details
US2087930A Telephone system Expired / Lapsed 1935-07-05 1937-07-27 0 Details
US2087674A Tape translator Expired / Lapsed 1934-03-23 1937-07-20 0 Details
US2070900A Thermionic relay circuit Expired / Lapsed 1932-06-25 1937-02-16 0 Details
US2068711A Stock quotation system Expired / Lapsed 1931-07-10 1937-01-26 0 Details
US2057911A Circuit controlling device Expired / Lapsed 1934-11-12 1936-10-20 0 Details
US2056752A Automatic telephone system Expired / Lapsed 1933-12-29 1936-10-06 0 Details
US2053774A Indicating system Expired / Lapsed 1934-10-24 1936-09-08 0 Details
US2052055A Telephone and signal system Expired / Lapsed 1934-06-15 1936-08-25 0 Details
US2052050A Automatic telephone system Expired / Lapsed 1933-10-09 1936-08-25 0 Details
US2049621A Remote control system Expired / Lapsed 1926-02-06 1936-08-04 0 Details
US2043673A Code call system Expired / Lapsed 1933-10-09 1936-06-09 0 Details
US2043707A Electric sign Expired / Lapsed 1932-09-21 1936-06-09 0 Details
US2028722A Airport control and signaling system Expired / Lapsed 1929-07-05 1936-01-21 0 Details
US2023239A Automatic telephone system Expired / Lapsed 1933-12-14 1935-12-03 0 Details
US2018420A Merchandise control system Expired / Lapsed 1933-09-08 1935-10-22 0 Details
US2013162A Television Expired / Lapsed 1924-04-10 1935-09-03 0 Details
US2008909A Signaling system Expired / Lapsed 1929-04-11 1935-07-23 0 Details
US2008912A Driving mechanism Expired / Lapsed 1928-07-16 1935-07-23 0 Details
US1999810A Indicating system Expired / Lapsed 1932-06-10 1935-04-30 0 Details
US1993870A Recording system Expired / Lapsed 1932-06-27 1935-03-12 0 Details
US1978684A Television Expired / Lapsed 1928-11-09 1934-10-30 0 Details
US1976096A Electrical signaling system Expired / Lapsed 1932-06-29 1934-10-09 0 Details
US1974191A Merchandise control system Expired / Lapsed 1932-04-18 1934-09-18 0 Details
US1963600A Signaling system Expired / Lapsed 1930-10-13 1934-06-19 0 Details
US1957672A Telephone system Expired / Lapsed 1928-07-25 1934-05-08 0 Details
US1942404A Telephone system Expired / Lapsed 1932-06-29 1934-01-09 0 Details
US1934737A Automatic telephone trunking system Expired / Lapsed 1931-10-12 1933-11-14 0 Details
US1934692A Battery charging control system Expired / Lapsed 1928-02-13 1933-11-14 0 Details
US1932190A Code signal generating device Expired / Lapsed 1930-07-10 1933-10-24 0 Details
US1929402A Signaling system Expired / Lapsed 1929-03-01 1933-10-10 0 Details
US1927556A Automatic auditing and merchandise control system Expired / Lapsed 1930-05-23 1933-09-19 0 Details
US1924435A Condenser Expired / Lapsed 1932-02-12 1933-08-29 0 Details
US1922192A Telephone system Expired / Lapsed 1932-01-08 1933-08-15 0 Details
US1914384A Telephone system Expired / Lapsed 1931-11-09 1933-06-20 0 Details
US1914358A Telephone system Expired / Lapsed 1931-11-07 1933-06-20 0 Details
US1909079A Electrical condenser Expired / Lapsed 1929-03-29 1933-05-16 0 Details
US1900499A Selective signaling system Expired / Lapsed 1930-06-07 1933-03-07 0 Details
US1888985A Selective signaling system Expired / Lapsed 1930-02-15 1932-11-29 0 Details
US1888337A Telephone system Expired / Lapsed 1931-05-11 1932-11-22 0 Details
US1886296A Telephone system Expired / Lapsed 1931-04-07 1932-11-01 0 Details
US1885690A Assembling machine and jig Expired / Lapsed 1928-06-27 1932-11-01 0 Details
US1882010A Selective signaling system Expired / Lapsed 1927-11-28 1932-10-11 0 Details
US1877883A Automatic telephone system Expired / Lapsed 1931-10-19 1932-09-20 0 Details
US1855859A Electric motor Expired / Lapsed 1929-11-04 1932-04-26 0 Details
US1855724A Multioffice telephone system Expired / Lapsed 1927-07-02 1932-04-26 0 Details
US1853639A Testing equipment Expired / Lapsed 1929-12-31 1932-04-12 0 Details
US1852980A Coil testing equipment Expired / Lapsed 1929-04-19 1932-04-05 0 Details
US1849679A Television Expired / Lapsed 1930-12-18 1932-03-15 0 Details
US1849694A Automatic telephone system Expired / Lapsed 1930-01-23 1932-03-15 0 Details
US1838961A Relay control system Expired / Lapsed 1928-12-03 1931-12-29 0 Details