Winthrop Chemical Co Inc
Winthrop CActive Patents
0
Total Holdings
20
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| CA500815A | Organic disinfecting agents in a special form | Expired / Lapsed | — | 1954-03-16 | 0 | Details |
| US2346632A | Organic disinfecting agent in a special form | Expired / Lapsed | 1940-05-07 | 1944-04-11 | 0 | Details |
| US2296584A | Growth promoting media | Expired / Lapsed | 1939-11-21 | 1942-09-22 | 0 | Details |
| US2162863A | Stable products shortening the bleeding period | Expired / Lapsed | 1936-07-07 | 1939-06-20 | 0 | Details |
| US2156193A | Antiseptic, disinfecting, and preserving media | Expired / Lapsed | 1934-12-14 | 1939-04-25 | 0 | Details |
| US2153981A | Medicinal container | Expired / Lapsed | 1936-04-03 | 1939-04-11 | 0 | Details |
| US2149005A | Shaped medicinal preparation | Expired / Lapsed | 1936-11-03 | 1939-02-28 | 0 | Details |
| US2142170A | Cyclopentane-polyhydrophenanthrene derivatives | Expired / Lapsed | 1938-02-12 | 1939-01-03 | 0 | Details |
| US2138712A | Manufacture of sponge articles | Expired / Lapsed | 1937-03-30 | 1938-11-29 | 0 | Details |
| US2120430A | Stabilized solid hydrogen peroxide preparation | Expired / Lapsed | 1934-01-05 | 1938-06-14 | 0 | Details |
| US2111504A | Liquid anthelmintics | Expired / Lapsed | 1936-11-03 | 1938-03-15 | 0 | Details |
| US2072212A | Embedding mass | Expired / Lapsed | 1935-07-26 | 1937-03-02 | 0 | Details |
| US2066105A | Medicaments coated with a waterinsoluble polymerization pro… | Expired / Lapsed | 1933-11-20 | 1936-12-29 | 0 | Details |
| US2055083A | Pharmaceutical preparation | Expired / Lapsed | 1933-07-11 | 1936-09-22 | 0 | Details |
| US2050558A | Stable hormone dry preparations in a solid condition and a … | Expired / Lapsed | 1934-03-16 | 1936-08-11 | 0 | Details |
| US2011160A | Manufacture of artificial sponge | Expired / Lapsed | 1933-10-09 | 1935-08-13 | 0 | Details |
| US1908918A | Manufacturing 1.2.3.4-tetrahydro-6-naphthaldehyde | Expired / Lapsed | 1930-07-15 | 1933-05-16 | 0 | Details |
| US1860898A | Injection ampul | Expired / Lapsed | 1929-09-20 | 1932-05-31 | 0 | Details |
| US1816542A | Dispensing device for small commodities | Expired / Lapsed | 1929-02-08 | 1931-07-28 | 0 | Details |
| US1582940A | Silver-protein preparation | Expired / Lapsed | 1922-07-11 | 1926-05-04 | 0 | Details |