Dewey and Almy Chemical Co
Dewey andActive Patents
0
Total Holdings
25
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 |
| US2626429A | Method of making storage battery separators | Expired / Lapsed | 1952-03-17 | 1953-01-27 | 2 | Details |
| US2492800A | Fast rising sounding balloon | Expired / Lapsed | 1948-08-16 | 1949-12-27 | 0 | Details |
| US2489407A | Method of lining container closures | Expired / Lapsed | 1947-08-09 | 1949-11-29 | 0 | Details |
| US2470214A | Soda lime | Expired / Lapsed | 1947-03-12 | 1949-05-17 | 0 | Details |
| US2442179A | Crown closure lining machine | Expired / Lapsed | 1942-10-21 | 1948-05-25 | 0 | Details |
| US2423688A | Soda lime composition | Expired / Lapsed | 1945-05-18 | 1947-07-08 | 0 | Details |
| US2376583A | Process for preserving perishable foodstuffs | Expired / Lapsed | 1939-10-03 | 1945-05-22 | 0 | Details |
| US2368624A | Package filling machine | Expired / Lapsed | 1942-03-27 | 1945-02-06 | 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 |
| US2280827A | Method of freezing and preserving foodstuffs | Expired / Lapsed | 1936-10-01 | 1942-04-28 | 0 | Details |
| US2248898A | Method of making rubber articles | Expired / Lapsed | 1938-12-03 | 1941-07-08 | 0 | Details |
| US2230192A | Rubber article and method of forming the same | Expired / Lapsed | 1938-12-02 | 1941-01-28 | 0 | Details |
| US2175798A | Manufacture of porous rubber | Expired / Lapsed | 1936-07-22 | 1939-10-10 | 0 | Details |
| US2114308A | Container closure and method of manufacturing the same | Expired / Lapsed | 1934-11-28 | 1938-04-19 | 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 |
| US1992589A | Organic fiber and method of preparing same | Expired / Lapsed | 1931-04-17 | 1935-02-26 | 0 | Details |
| US1978385A | Rubber-impregnated fibrous sheet material | Expired / Lapsed | 1933-04-29 | 1934-10-23 | 0 | Details |
| US1956012A | Method of making alpha receptacle closure | Expired / Lapsed | 1932-04-27 | 1934-04-24 | 0 | Details |
| US1956053A | Rubber-bonded asbestos product and method of making | Expired / Lapsed | 1931-04-17 | 1934-04-24 | 0 | Details |
| US1907617A | Manufacture of rubber bonded asbestos | Expired / Lapsed | 1931-04-17 | 1933-05-09 | 0 | Details |