National Rubber Machinery Co
National RActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2975475A | Sheeting die | Expired / Lapsed | 1956-07-20 | 1961-03-21 | 0 | Details |
| US2595455A | Extruder | Expired / Lapsed | 1950-03-07 | 1952-05-06 | 0 | Details |
| US2541201A | Method of extrusion | Expired / Lapsed | 1948-08-28 | 1951-02-13 | 0 | Details |
| US2407503A | Apparatus for extruding thermoplastic materials | Expired / Lapsed | 1941-01-21 | 1946-09-10 | 0 | Details |
| US2322483A | Method for manufacturing insulated wire | Expired / Lapsed | 1940-09-07 | 1943-06-22 | 0 | Details |
| US2221210A | Filter for dry cleaner solvents | Expired / Lapsed | 1937-10-01 | 1940-11-12 | 0 | Details |
| US1755981A | Vulcanizing machine | Expired / Lapsed | 1925-11-09 | 1930-04-22 | 0 | Details |