National Aniline and Chemical Co Inc
National AActive Patents
0
Total Holdings
14
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2221933A | Wetting composition | Expired / Lapsed | 1937-12-30 | 1940-11-19 | 0 | Details |
| US2069210A | Flavanthrone dyestuff and printing paste | Expired / Lapsed | 1936-02-21 | 1937-02-02 | 0 | Details |
| US2067019A | Phthalic anhydride recovery | Expired / Lapsed | 1933-12-29 | 1937-01-05 | 0 | Details |
| US2064468A | Production of phthalic anhydride in finely divided solid fo… | Expired / Lapsed | 1933-04-27 | 1936-12-15 | 0 | Details |
| US2055685A | Purification of dyestuffs | Expired / Lapsed | 1934-03-07 | 1936-09-29 | 0 | Details |
| US2011710A | Apparatus for measuring temperature | Expired / Lapsed | 1928-08-18 | 1935-08-20 | 0 | Details |
| US2004569A | Electrometric determinations | Expired / Lapsed | 1926-05-14 | 1935-06-11 | 0 | Details |
| US1950468A | Alkyd resinous composition | Expired / Lapsed | 1930-04-18 | 1934-03-13 | 0 | Details |
| US1847368A | Dust separation | Expired / Lapsed | 1926-05-14 | 1932-03-01 | 0 | Details |
| US1815902A | Device for administering medicaments | Expired / Lapsed | 1927-07-16 | 1931-07-28 | 0 | Details |
| US1773110A | Stop valve | Expired / Lapsed | 1925-08-06 | 1930-08-19 | 0 | Details |
| US1744598A | Process and apparatus for heating | Expired / Lapsed | 1925-01-17 | 1930-01-21 | 0 | Details |
| US1680595A | Current induction | Expired / Lapsed | 1925-10-26 | 1928-08-14 | 0 | Details |
| US1661290A | Nutsch filter | Expired / Lapsed | 1927-04-08 | 1928-03-06 | 0 | Details |