National Steel Corp
National SActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4159218A | Method for producing a dual-phase ferrite-martensite steel … | Expired / Lapsed | 1978-08-07 | 1979-06-26 | 12 | Details |
| US3190768A | Method for galvanizing steel | Expired / Lapsed | 1961-07-24 | 1965-06-22 | 0 | Details |
| US3136709A | Method of electroplating an aluminum containing coating | Expired / Lapsed | 1959-07-14 | 1964-06-09 | 2 | Details |
| US2989026A | Vacuum coating apparatus | Expired / Lapsed | 1957-11-19 | 1961-06-20 | 0 | Details |
| US2717060A | Arched building structures and elements for same | Expired / Lapsed | 1951-04-06 | 1955-09-06 | 0 | Details |
| US2610707A | Building structure | Expired / Lapsed | 1946-02-23 | 1952-09-16 | 0 | Details |
| US2595665A | Wall construction | Expired / Lapsed | 1946-07-11 | 1952-05-06 | 0 | Details |
| US2590464A | Airplane hangar | Expired / Lapsed | 1946-03-02 | 1952-03-25 | 0 | Details |
| US2544510A | Apparatus and method for plating strips | Expired / Lapsed | 1943-10-23 | 1951-03-06 | 0 | Details |
| US2399254A | Electroplating | Expired / Lapsed | 1943-05-20 | 1946-04-30 | 0 | Details |