IBM Information Products Corp
IBM InformActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| USD291093S | Display for electronic typewriter or similar article | Expired / Lapsed | 1984-04-19 | 1987-07-28 | 1 | Details |
| USD284009S | Keyboard panel | Expired / Lapsed | 1983-09-15 | 1986-05-27 | 1 | Details |
| US4523868A | Ribbon feed cartridge | Expired / Lapsed | 1983-07-18 | 1985-06-18 | 6 | Details |
| US4469026A | Method and apparatus for controlling drying and detaching o… | Expired / Lapsed | 1981-12-15 | 1984-09-04 | 28 | Details |
| US4047608B1 | US4047608B1 - - Google Patents | Expired / Lapsed | 1976-04-01 | 1984-09-04 | 0 | Details |
| US4344069A | Method and apparatus for character generation | Expired / Lapsed | 1979-11-19 | 1982-08-10 | 9 | Details |
| US4339210A | Ribbon cartridge loading mechanism | Expired / Lapsed | 1980-11-26 | 1982-07-13 | 15 | Details |
| US4239107A | Cartridge assembly apparatus for typewriters | Expired / Lapsed | 1979-02-01 | 1980-12-16 | 19 | Details |
| US4150987A | Hydrazone containing charge transport element and photocond… | Expired / Lapsed | 1977-10-17 | 1979-04-24 | 25 | Details |