Patent Explorer
Browse, filter, and analyze 15 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4384397A | Tool changing machining center with swing spindle | Giddings and Lewis LLC | Expired / Lapsed | 1980-04-22 | 1983-05-24 | 2000-04-22 | 0.0 yrs | 13 | |
| US3727191A | Acceleration-deceleration for numerical control | Giddings and Lewis LLC | Expired / Lapsed | 1971-03-15 | 1973-04-10 | 1991-03-15 | 0.0 yrs | 70 | |
| US3551656A | Numerical control system | Giddings and Lewis LLC | Expired / Lapsed | 1965-04-12 | 1970-12-29 | 1985-04-12 | 0.0 yrs | 0 | |
| US3490017A | Numerical control systems employing conversion of changing command numbers into phase analog signals | Giddings and Lewis LLC | Expired / Lapsed | 1966-12-19 | 1970-01-13 | 1986-12-19 | 0.0 yrs | 0 | |
| US3439346A | Record reading system for simultaneous control of a plurality of devices | Giddings and Lewis LLC | Expired / Lapsed | 1966-08-17 | 1969-04-15 | 1986-08-17 | 0.0 yrs | 0 | |
| US3215983A | Tape controlled positioning apparatus | Giddings and Lewis LLC | Expired / Lapsed | 1960-02-09 | 1965-11-02 | 1980-02-09 | 0.0 yrs | 2 | |
| US3101436A | Numerically controlled positioning system | Giddings and Lewis LLC | Expired / Lapsed | 1960-04-28 | 1963-08-20 | 1980-04-28 | 0.0 yrs | 2 | |
| US3090266A | Apparatus to provide constant facing speed | Giddings and Lewis LLC | Expired / Lapsed | 1957-04-29 | 1963-05-21 | 1977-04-29 | 0.0 yrs | 0 | |
| US3063015A | Rate control for data processing systems | Giddings and Lewis LLC | Expired / Lapsed | 1959-03-12 | 1962-11-06 | 1979-03-12 | 0.0 yrs | 0 | |
| US3048832A | Position indicating means for machine tools | Giddings and Lewis LLC | Expired / Lapsed | 1957-12-12 | 1962-08-07 | 1977-12-12 | 0.0 yrs | 0 | |
| US2946232A | Gear drive | Giddings and Lewis LLC | Expired / Lapsed | 1957-08-01 | 1960-07-26 | 1977-08-01 | 0.0 yrs | 0 | |
| US2809333A | Constant chip thickness motor control system for machine tools | Giddings and Lewis LLC | Expired / Lapsed | 1952-10-07 | 1957-10-08 | 1972-10-07 | 0.0 yrs | 0 | |
| US2694804A | Positioning device | Giddings and Lewis LLC | Expired / Lapsed | 1952-05-22 | 1954-11-16 | 1972-05-22 | 0.0 yrs | 0 | |
| US2565522A | Molding machine | Giddings and Lewis LLC | Expired / Lapsed | 1947-05-05 | 1951-08-28 | 1967-05-05 | 0.0 yrs | 0 | |
| US2269290A | Speed-change mechanism | Giddings and Lewis LLC | Expired / Lapsed | 1940-02-26 | 1942-01-06 | 1960-02-26 | 0.0 yrs | 0 |