Ditto Inc
Ditto IncActive Patents
0
Total Holdings
21
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2554909A | Smudge resistant transfer sheet and process of making same | Expired / Lapsed | 1946-04-15 | 1951-05-29 | 0 | Details |
| US2368531A | Duplication system | Expired / Lapsed | 1943-05-10 | 1945-01-30 | 0 | Details |
| US2349634A | Control means for the impression rollers of duplicating mac… | Expired / Lapsed | 1941-10-25 | 1944-05-23 | 0 | Details |
| US2299974A | Method of duplicating and mechanism therefor | Expired / Lapsed | 1941-02-17 | 1942-10-27 | 0 | Details |
| US2288152A | Hectograph blanket | Expired / Lapsed | 1941-05-03 | 1942-06-30 | 0 | Details |
| US2288149A | Manifolding method and means | Expired / Lapsed | 1940-03-25 | 1942-06-30 | 0 | Details |
| US2288073A | Printing plate having a water repellent surface and method … | Expired / Lapsed | 1939-03-30 | 1942-06-30 | 0 | Details |
| US2271801A | Moistening mechanism | Expired / Lapsed | 1939-08-03 | 1942-02-03 | 0 | Details |
| US2267982A | Moistening means | Expired / Lapsed | 1939-04-12 | 1941-12-30 | 0 | Details |
| US2254483A | Duplicating process and preparation of master copies for us… | Expired / Lapsed | 1939-06-29 | 1941-09-02 | 0 | Details |
| US2243078A | Transfer sheet and composition for producing reinkable impr… | Expired / Lapsed | 1938-02-04 | 1941-05-27 | 0 | Details |
| US2240031A | Transfer process and copy paper for use therein | Expired / Lapsed | 1939-03-06 | 1941-04-29 | 0 | Details |
| US2220265A | Liquid process duplicating machine and block-out means ther… | Expired / Lapsed | 1939-06-03 | 1940-11-05 | 0 | Details |
| US2216594A | Duplicating device and a method of producing it | Expired / Lapsed | 1938-06-23 | 1940-10-01 | 0 | Details |
| US2188590A | Nonsmudging transfer sheet | Expired / Lapsed | 1938-02-04 | 1940-01-30 | 0 | Details |
| US2172876A | Duplicating apparatus | Expired / Lapsed | 1937-06-26 | 1939-09-12 | 0 | Details |
| US2165972A | Duplicating machine | Expired / Lapsed | 1937-06-28 | 1939-07-11 | 0 | Details |
| US2135824A | Moistening means for duplicators | Expired / Lapsed | 1937-02-08 | 1938-11-08 | 0 | Details |
| US2071910A | Treating hectograph bands | Expired / Lapsed | 1935-12-09 | 1937-02-23 | 0 | Details |
| US1960482A | Feeding mechanism for rotary duplicators | Expired / Lapsed | 1931-12-31 | 1934-05-29 | 0 | Details |
| US1955489A | Spindle and spindle receptacle | Expired / Lapsed | 1930-10-08 | 1934-04-17 | 0 | Details |