United States Envelope Co
United StaActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3522908A | Two-compartment envelope | Expired / Lapsed | 1968-09-10 | 1970-08-04 | 0 | Details |
| US2399000A | Envelope | Expired / Lapsed | 1943-09-04 | 1946-04-23 | 0 | Details |
| US2389747A | Envelope | Expired / Lapsed | 1943-04-05 | 1945-11-27 | 0 | Details |
| US2347439A | Method of and apparatus for making containers | Expired / Lapsed | 1939-09-21 | 1944-04-25 | 0 | Details |
| US2332637A | Continuous envelope | Expired / Lapsed | 1941-02-05 | 1943-10-26 | 0 | Details |
| US2209601A | Mailing closure for cards | Expired / Lapsed | 1935-08-19 | 1940-07-30 | 0 | Details |
| US2087362A | Envelope blank | Expired / Lapsed | 1934-02-01 | 1937-07-20 | 0 | Details |
| US1977022A | Process of treating paper and product thereof | Expired / Lapsed | 1929-11-22 | 1934-10-16 | 0 | Details |
| US1144506A | Envelop-making machine. | Expired / Lapsed | 1908-07-24 | 1915-06-29 | 0 | Details |