Patent Explorer
Browse, filter, and analyze 53 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| GB2008884A | Receiver bandwidth conservation in a doppler radar | Singer Co | Expired / Lapsed | 1978-08-16 | — | 1998-08-16 | 0.0 yrs | 0 | |
| US4493647A | Weather radar simulator | Singer Co | Expired / Lapsed | 1982-03-29 | 1985-01-15 | 2002-03-29 | 0.0 yrs | 6 | |
| US4129813A | Method and apparatus for adaptive control of a stepper motor | Singer Co | Expired / Lapsed | 1977-07-26 | 1978-12-12 | 1997-07-26 | 0.0 yrs | 41 | |
| US3957004A | Hand-operated lock stitch sewing machine | Singer Co | Expired / Lapsed | 1975-04-25 | 1976-05-18 | 1995-04-25 | 0.0 yrs | 7 | |
| US3903504A | Binary phase digital decoding system | Singer Co | Expired / Lapsed | 1974-03-20 | 1975-09-02 | 1994-03-20 | 0.0 yrs | 11 | |
| US3900879A | Electronic countermeasures system | Singer Co | Expired / Lapsed | 1968-04-11 | 1975-08-19 | 1988-04-11 | 0.0 yrs | 7 | |
| US3836855A | Modulating system | Singer Co | Expired / Lapsed | 1958-05-05 | 1974-09-17 | 1978-05-05 | 0.0 yrs | 24 | |
| US3828185A | Modulated light communication system | Singer Co | Expired / Lapsed | 1960-12-01 | 1974-08-06 | 1980-12-01 | 0.0 yrs | 67 | |
| US3819920A | Digital frequency tracker | Singer Co | Expired / Lapsed | 1973-01-29 | 1974-06-25 | 1993-01-29 | 0.0 yrs | 11 | |
| US3793508A | Film frame counter | Singer Co | Expired / Lapsed | 1971-12-21 | 1974-02-19 | 1991-12-21 | 0.0 yrs | 26 | |
| US3773422A | Calculating linear dimensions from tv images | Singer Co | Expired / Lapsed | 1971-04-07 | 1973-11-20 | 1991-04-07 | 0.0 yrs | 8 | |
| US3747094A | Correlator | Singer Co | Expired / Lapsed | 1962-08-27 | 1973-07-17 | 1982-08-27 | 0.0 yrs | 17 | |
| US3728635A | Pulsed selectable delay system | Singer Co | Expired / Lapsed | 1971-09-08 | 1973-04-17 | 1991-09-08 | 0.0 yrs | 7 | |
| US3725873A | Calculator having a sequential access stack | Singer Co | Expired / Lapsed | 1971-04-07 | 1973-04-03 | 1991-04-07 | 0.0 yrs | 25 | |
| US3723873A | Radiation method for determining semiconductor stability and reliability | Singer Co | Expired / Lapsed | 1971-01-21 | 1973-03-27 | 1991-01-21 | 0.0 yrs | 13 | |
| US3721977A | Image beam lock-on detector | Singer Co | Expired / Lapsed | 1971-08-26 | 1973-03-20 | 1991-08-26 | 0.0 yrs | 15 | |
| US3668693A | Analog-to-digital converter | Singer Co | Expired / Lapsed | 1970-07-20 | 1972-06-06 | 1990-07-20 | 0.0 yrs | 7 | |
| US3665426A | Alterable read only memory organization | Singer Co | Expired / Lapsed | 1970-10-07 | 1972-05-23 | 1990-10-07 | 0.0 yrs | 10 | |
| US3646545A | Ladderless digital-to-analog converter | Singer Co | Expired / Lapsed | 1970-06-04 | 1972-02-29 | 1990-06-04 | 0.0 yrs | 17 | |
| US3631403A | Retail sales transaction terminal | Singer Co | Expired / Lapsed | 1969-09-08 | 1971-12-28 | 1989-09-08 | 0.0 yrs | 17 |
Showing 1 to 20 of 53 patents
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