Metropolitan Vickers Electrical Co Ltd
MetropolitActive Patents
0
Total Holdings
33
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB798538A | Improvements relating to apparatus for identifying railway … | Expired / Lapsed | 1955-03-23 | — | 0 | Details |
| GB745700A | Improvements relating to electrical drying processes and ap… | Expired / Lapsed | 1953-10-08 | — | 0 | Details |
| GB697879A | Improvements relating to electric peak voltage measuring ci… | Expired / Lapsed | 1951-06-18 | — | 0 | Details |
| GB621872A | Improvements relating to electrical timing circuits | Expired / Lapsed | 1946-07-09 | — | 0 | Details |
| GB621752A | Improvements relating to indicating and recording apparatus | Expired / Lapsed | 1946-07-09 | — | 0 | Details |
| GB588847A | Improvements in combustion chambers for internal combustion… | Expired / Lapsed | 1944-11-28 | — | 0 | Details |
| GB580005A | Improvements in and relating to electric circuit arrangemen… | Expired / Lapsed | 1943-04-05 | — | 0 | Details |
| GB595346A | Improvements relating to bearings of internal combustion ga… | Expired / Lapsed | 1941-05-07 | — | 0 | Details |
| GB502743A | Improvements in and relating to cathode ray oscillographs | Expired / Lapsed | 1937-09-23 | — | 0 | Details |
| GB491741A | Improvements in apparatus for chopping electrical impulses | Expired / Lapsed | 1937-04-08 | — | 0 | Details |
| GB482956A | Improvements in oscillograph electric transient analysers | Expired / Lapsed | 1936-10-07 | — | 0 | Details |
| GB314167A | Improvements in electric frequency filters | Expired / Lapsed | 1928-04-23 | — | 0 | Details |
| GB264472A | Improvements in electrical signalling and/or controlling sy… | Expired / Lapsed | 1926-12-20 | — | 0 | Details |
| GB221282A | Improvements in or relating to valve amplifiers for electri… | Expired / Lapsed | 1923-06-09 | — | 0 | Details |
| US3008074A | Electric motor control | Expired / Lapsed | 1956-04-20 | 1961-11-07 | 0 | Details |
| US2999766A | Magnetic signal carriers | Expired / Lapsed | 1958-02-03 | 1961-09-12 | 0 | Details |
| US2985599A | Platinum carbon rods for electron microscope technique | Expired / Lapsed | 1959-08-17 | 1961-05-23 | 2 | Details |
| US2981611A | Manufacture of printed electrical circuits or components | Expired / Lapsed | 1957-03-12 | 1961-04-25 | 0 | Details |
| US2851676A | Driving apparatus for recording tapes | Expired / Lapsed | 1957-02-27 | 1958-09-09 | 0 | Details |
| US2815552A | Method of making a mold by the lost-wax process | Expired / Lapsed | 1952-11-10 | 1957-12-10 | 2 | Details |
| US2746000A | Control of alternating current electric motor equipment | Expired / Lapsed | 1954-06-28 | 1956-05-15 | 0 | Details |
| US2629226A | Hydraulic power aligning mechanism | Expired / Lapsed | 1946-09-26 | 1953-02-24 | 0 | Details |
| US2461931A | Multistage compressor | Expired / Lapsed | 1944-04-06 | 1949-02-15 | 0 | Details |
| US2418801A | Internal-combustion turbine plant | Expired / Lapsed | 1944-01-13 | 1947-04-08 | 0 | Details |
| US2408705A | Mechanical relay of the fluid jet type | Expired / Lapsed | 1943-12-31 | 1946-10-01 | 0 | Details |
| US2397448A | Mechanical relay of the fluid jet type | Expired / Lapsed | 1943-12-31 | 1946-03-26 | 0 | Details |
| US2383420A | Thermionic valve circuits | Expired / Lapsed | 1943-09-21 | 1945-08-21 | 0 | Details |
| US1677268A | High-frequency signaling system | Expired / Lapsed | 1924-06-02 | 1928-07-17 | 0 | Details |
| US1664225A | Vacuum electric tube device | Expired / Lapsed | 1924-09-27 | 1928-03-27 | 0 | Details |
| US1362074A | Turbine | Expired / Lapsed | 1919-05-03 | 1920-12-14 | 0 | Details |
| US1347031A | Attachment of moving blades of elastic-fluid turbines | Expired / Lapsed | 1917-01-31 | 1920-07-20 | 0 | Details |
| US1228608A | Fluid-operated ejector. | Expired / Lapsed | 1915-07-14 | 1917-06-05 | 0 | Details |
| US1212311A | Turbine-control mechanism. | Expired / Lapsed | 1910-09-03 | 1917-01-16 | 0 | Details |