Columbia Ribbon and Carbon Manufacturing Co Inc
Columbia RActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4042401A | Hectograph products and process | Expired / Lapsed | 1975-02-26 | 1977-08-16 | 12 | Details |
| US3541508A | Character reading system | Expired / Lapsed | 1966-09-08 | 1970-11-17 | 0 | Details |
| US3022880A | Novel transfer media | Expired / Lapsed | 1959-11-16 | 1962-02-27 | 2 | Details |
| US2984582A | Pressure sensitive ink releasing transfer sheet and process… | Expired / Lapsed | 1959-12-22 | 1961-05-16 | 2 | Details |
| US2912344A | Pressure-sensitive transfer element for placing smudge-resi… | Expired / Lapsed | 1957-10-11 | 1959-11-10 | 2 | Details |
| US2713822A | Planographic printing | Expired / Lapsed | 1948-12-20 | 1955-07-26 | 0 | Details |
| US2570262A | Photosensitive planographic plate | Expired / Lapsed | 1947-01-23 | 1951-10-09 | 2 | Details |
| US2255104A | Typewriter ribbon | Expired / Lapsed | 1940-08-21 | 1941-09-09 | 0 | Details |
| US2041297A | Process for making metallic-coated membrane | Expired / Lapsed | 1935-06-18 | 1936-05-19 | 0 | Details |
| US2016138A | Package and method of making same | Expired / Lapsed | 1932-08-13 | 1935-10-01 | 0 | Details |