Du Pont Cellophane Co Inc
Du Pont CeActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2011246A | Wrapping material | Expired / Lapsed | 1932-07-07 | 1935-08-13 | 0 | Details |
| US2008815A | Process for preventing adhesion of films | Expired / Lapsed | 1932-01-22 | 1935-07-23 | 0 | Details |
| US2000079A | Machine | Expired / Lapsed | 1932-10-21 | 1935-05-07 | 0 | Details |
| US1995750A | Protective covering | Expired / Lapsed | 1930-10-23 | 1935-03-26 | 0 | Details |
| US1992249A | Laminated material | Expired / Lapsed | 1931-04-28 | 1935-02-26 | 0 | Details |
| US1983520A | Laminated material | Expired / Lapsed | 1931-04-22 | 1934-12-11 | 0 | Details |
| US1973883A | Protective covering for mouthpieces | Expired / Lapsed | 1930-09-12 | 1934-09-18 | 0 | Details |
| US1937537A | Tube | Expired / Lapsed | 1931-10-28 | 1933-12-05 | 0 | Details |
| US1910521A | Method and apparatus for producing a sheet of film of regen… | Expired / Lapsed | 1930-01-15 | 1933-05-23 | 0 | Details |
| US1826696A | Moistureproofing composition | Expired / Lapsed | 1928-09-27 | 1931-10-06 | 0 | Details |
| US1815365A | Method of affixing labels | Expired / Lapsed | 1930-08-07 | 1931-07-21 | 0 | Details |