Duracell Inc USA
Duracell IActive Patents
0
Total Holdings
87
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3898488A | Electric motor construction | Expired / Lapsed | 1974-02-04 | 1975-08-05 | 10 | Details |
| US3824129A | Heart pacer rechargeable cell and protective control system | Expired / Lapsed | 1973-03-14 | 1974-07-16 | 0 | Details |
| US3766442A | Electrical component terminal | Expired / Lapsed | 1972-02-04 | 1973-10-16 | 13 | Details |
| US3618202A | Ceramic chip electrical components | Expired / Lapsed | 1969-05-12 | 1971-11-09 | 0 | Details |
| US3586797A | Electric timer mechanism with improved printed circuit cont… | Expired / Lapsed | 1969-03-20 | 1971-06-22 | 20 | Details |
| US3548329A | Two-state amplifier | Expired / Lapsed | 1969-05-09 | 1970-12-15 | 0 | Details |
| US3506902A | Rechargeable cells and connection means therefor | Expired / Lapsed | 1967-07-27 | 1970-04-14 | 0 | Details |
| US3506911A | Apparatus for indicating relative alignment of engageable c… | Expired / Lapsed | 1965-10-24 | 1970-04-14 | 0 | Details |
| US3477460A | Fluid level control system | Expired / Lapsed | 1965-08-02 | 1969-11-11 | 0 | Details |
| US3453535A | Capacitance test instrument using partial discharge time in… | Expired / Lapsed | 1967-10-20 | 1969-07-01 | 0 | Details |
| US3439233A | Capacitor having integral standoffs | Expired / Lapsed | 1966-11-28 | 1969-04-15 | 0 | Details |
| US3417459A | Bonding electrically conductive metals to insulators | Expired / Lapsed | 1967-03-06 | 1968-12-24 | 0 | Details |
| US3387193A | Diffused resistor for an integrated circuit | Expired / Lapsed | 1966-03-24 | 1968-06-04 | 0 | Details |
| US3345915A | Snap action fluid escapement for obtaining intermittent rot… | Expired / Lapsed | 1964-10-12 | 1967-10-10 | 2 | Details |
| US3278815A | Electrical capacitor with a boron nitride dielectric | Expired / Lapsed | 1961-01-11 | 1966-10-11 | 2 | Details |
| US3261902A | Method of making encapsulated capacitor | Expired / Lapsed | 1964-09-08 | 1966-07-19 | 2 | Details |
| US3200320A | Charging means with magnetic contacts for battery operated … | Expired / Lapsed | 1962-11-13 | 1965-08-10 | 1 | Details |
| US2931003A | Spring pin cascaded circuit cards | Expired / Lapsed | 1955-09-27 | 1960-03-29 | 0 | Details |
| US2882512A | Socket structure | Expired / Lapsed | 1955-07-20 | 1959-04-14 | 0 | Details |
| US2868026A | Intermittent driving mechanism | Expired / Lapsed | 1957-08-22 | 1959-01-13 | 0 | Details |
| US2858179A | Chassis, base, and cover fastening means | Expired / Lapsed | 1957-01-10 | 1958-10-28 | 0 | Details |
| US2787713A | Television tuner | Expired / Lapsed | 1952-11-20 | 1957-04-02 | 0 | Details |
| US2666906A | Spiral tuner | Expired / Lapsed | 1950-04-18 | 1954-01-19 | 0 | Details |
| US2636856A | Electrode for electrochemical oxidation | Expired / Lapsed | 1948-06-29 | 1953-04-28 | 0 | Details |
| US2632830A | Indexed control | Expired / Lapsed | 1950-12-27 | 1953-03-24 | 0 | Details |
| US2610223A | Miniature phone plug | Expired / Lapsed | 1950-03-17 | 1952-09-09 | 0 | Details |
| US2541828A | Condenser mounting clip | Expired / Lapsed | 1945-08-02 | 1951-02-13 | 0 | Details |
| US2539247A | Method of bonding aluminum to steel | Expired / Lapsed | 1945-07-31 | 1951-01-23 | 2 | Details |
| US2539246A | Method of making aluminum clad steel | Expired / Lapsed | 1944-10-07 | 1951-01-23 | 2 | Details |
| US2535479A | Magnetic pickup | Expired / Lapsed | 1947-05-20 | 1950-12-26 | 0 | Details |
| US2531905A | Rotary solenoid | Expired / Lapsed | 1947-08-04 | 1950-11-28 | 0 | Details |
| US2523354A | Battery holder for electrically operated devices | Expired / Lapsed | 1945-12-22 | 1950-09-26 | 0 | Details |
| US2513393A | High-frequency tuner device | Expired / Lapsed | 1949-03-29 | 1950-07-04 | 0 | Details |
| US2484082A | Control device for interoffice communication systems | Expired / Lapsed | 1947-01-08 | 1949-10-11 | 0 | Details |
| US2473371A | Method of making contacts | Expired / Lapsed | 1945-12-29 | 1949-06-14 | 0 | Details |
| US2470034A | Electric contact formed of a ruthenium composition | Expired / Lapsed | 1945-11-27 | 1949-05-10 | 0 | Details |
| US2468625A | Electrical bridge circuit for testing the value of a resist… | Expired / Lapsed | 1945-10-01 | 1949-04-26 | 0 | Details |
| US2464591A | Method of bonding a tungsten member to a backing member | Expired / Lapsed | 1944-04-04 | 1949-03-15 | 0 | Details |
| US2464022A | Electrical unit closure | Expired / Lapsed | 1945-06-15 | 1949-03-08 | 0 | Details |
| US2460903A | Motor starting capacitor assembly | Expired / Lapsed | 1945-05-21 | 1949-02-08 | 0 | Details |
| US2458871A | Marking device | Expired / Lapsed | 1945-07-12 | 1949-01-11 | 0 | Details |
| US2453612A | Vibrator power supply | Expired / Lapsed | 1944-04-14 | 1948-11-09 | 0 | Details |
| US2447979A | Copper base alloy for metal evaporation | Expired / Lapsed | 1944-07-06 | 1948-08-24 | 0 | Details |
| US2423051A | Selenium depositing machine | Expired / Lapsed | 1945-09-05 | 1947-06-24 | 0 | Details |
| US2418881A | Sintered aluminum bearing | Expired / Lapsed | 1944-06-10 | 1947-04-15 | 0 | Details |
| US2401483A | Projectile and method of making the same | Expired / Lapsed | 1940-07-31 | 1946-06-04 | 0 | Details |
| US2400003A | Electric contact | Expired / Lapsed | 1943-04-16 | 1946-05-07 | 0 | Details |
| US2393905A | Bearing | Expired / Lapsed | 1943-08-06 | 1946-01-29 | 0 | Details |
| US2391456A | Spark plug electrode | Expired / Lapsed | 1944-01-29 | 1945-12-25 | 0 | Details |
| US2387903A | Contacting element | Expired / Lapsed | 1944-03-14 | 1945-10-30 | 0 | Details |
| US2364684A | Method of making vibrators | Expired / Lapsed | 1941-10-31 | 1944-12-12 | 0 | Details |
| US2355145A | Welding apparatus | Expired / Lapsed | 1940-12-18 | 1944-08-08 | 0 | Details |
| US2354786A | Spark gap | Expired / Lapsed | 1943-03-16 | 1944-08-01 | 0 | Details |
| US2354750A | Electric switch | Expired / Lapsed | 1942-06-06 | 1944-08-01 | 0 | Details |
| US2338330A | Apparatus for making tubular rivets | Expired / Lapsed | 1943-05-01 | 1944-01-04 | 0 | Details |
| US2319240A | Electric contact and the like | Expired / Lapsed | 1940-03-19 | 1943-05-18 | 0 | Details |
| US2297608A | Dry electrolytic condenser | Expired / Lapsed | 1938-03-03 | 1942-09-29 | 0 | Details |
| US2297607A | Electrolytic condenser and method of making the same | Expired / Lapsed | 1937-09-11 | 1942-09-29 | 0 | Details |
| US2294404A | Silver bearing | Expired / Lapsed | 1940-08-22 | 1942-09-01 | 0 | Details |
| US2277107A | Clutch facing | Expired / Lapsed | 1940-01-04 | 1942-03-24 | 0 | Details |
| US2256642A | Electric resistance element | Expired / Lapsed | 1939-03-09 | 1941-09-23 | 0 | Details |
| US2247755A | Electric contact | Expired / Lapsed | 1940-02-03 | 1941-07-01 | 0 | Details |
| US2239179A | Copper alloy | Expired / Lapsed | 1940-12-04 | 1941-04-22 | 0 | Details |
| US2235634A | Silver solder | Expired / Lapsed | 1939-08-15 | 1941-03-18 | 0 | Details |
| US2223573A | Vibrator unit | Expired / Lapsed | 1935-06-29 | 1940-12-03 | 0 | Details |
| US2218162A | Condenser electrode terminal | Expired / Lapsed | 1938-04-14 | 1940-10-15 | 0 | Details |
| US2213312A | Electric contact | Expired / Lapsed | 1940-04-08 | 1940-09-03 | 0 | Details |
| US2202166A | Condenser mounting | Expired / Lapsed | 1937-11-04 | 1940-05-28 | 0 | Details |
| US2199240A | Silver faced contact | Expired / Lapsed | 1936-05-26 | 1940-04-30 | 0 | Details |
| US2197607A | Vibrator | Expired / Lapsed | 1937-06-11 | 1940-04-16 | 0 | Details |
| US2194182A | Rectifier | Expired / Lapsed | 1939-07-13 | 1940-03-19 | 0 | Details |
| US2194288A | Power supply system | Expired / Lapsed | 1938-02-17 | 1940-03-19 | 0 | Details |
| US2187379A | Alloy | Expired / Lapsed | 1939-06-02 | 1940-01-16 | 0 | Details |
| US2186638A | Switch contact | Expired / Lapsed | 1936-05-13 | 1940-01-09 | 0 | Details |
| US2177481A | Switch | Expired / Lapsed | 1934-10-05 | 1939-10-24 | 0 | Details |
| US2167240A | Magnet material | Expired / Lapsed | 1937-09-30 | 1939-07-25 | 0 | Details |
| US2166202A | Electric organ | Expired / Lapsed | 1936-12-30 | 1939-07-18 | 0 | Details |
| US2157933A | Silver-indium contact | Expired / Lapsed | 1938-08-06 | 1939-05-09 | 0 | Details |
| US2148453A | Resistance | Expired / Lapsed | 1935-03-23 | 1939-02-28 | 0 | Details |
| US2145690A | Electric contact material | Expired / Lapsed | 1937-09-24 | 1939-01-31 | 0 | Details |
| US2144959A | Condenser construction | Expired / Lapsed | 1937-09-24 | 1939-01-24 | 0 | Details |
| US2137617A | Electrical contact and method of making the same | Expired / Lapsed | 1936-03-04 | 1938-11-22 | 0 | Details |
| US2119195A | Constant impedance attenuator | Expired / Lapsed | 1935-11-05 | 1938-05-31 | 0 | Details |
| US2116091A | Potential producing cell | Expired / Lapsed | 1936-08-07 | 1938-05-03 | 0 | Details |
| US2113463A | Electric switch | Expired / Lapsed | 1935-04-16 | 1938-04-05 | 0 | Details |
| US2032424A | Potential changer | Expired / Lapsed | 1932-09-27 | 1936-03-03 | 0 | Details |
| US1848437A | Metal alloy | Expired / Lapsed | 1925-08-26 | 1932-03-08 | 0 | Details |