Dewey and Almy Chemical Co
Dewey andActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2687445A | Battery separator | Expired / Lapsed | 1950-04-11 | 1954-08-24 | 2 | Details |
| US2376583A | Process for preserving perishable foodstuffs | Expired / Lapsed | 1939-10-03 | 1945-05-22 | 0 | Details |
| US2352503A | Container | Expired / Lapsed | 1941-04-16 | 1944-06-27 | 0 | Details |
| US2348176A | Packaging process | Expired / Lapsed | 1938-12-12 | 1944-05-02 | 0 | Details |
| US2347618A | Container closure and lining composition | Expired / Lapsed | 1940-07-25 | 1944-04-25 | 0 | Details |
| US2335865A | Packaging method | Expired / Lapsed | 1941-11-17 | 1943-12-07 | 0 | Details |
| US2248898A | Method of making rubber articles | Expired / Lapsed | 1938-12-03 | 1941-07-08 | 0 | Details |
| US2175798A | Manufacture of porous rubber | Expired / Lapsed | 1936-07-22 | 1939-10-10 | 0 | Details |
| US2097417A | Rubber impregnated fibrous material | Expired / Lapsed | 1935-12-12 | 1937-10-26 | 0 | Details |
| US2047977A | Seal for containers | Expired / Lapsed | 1933-04-13 | 1936-07-21 | 0 | Details |