Sperry Corp.
Records under this name other than patents Sperry Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,811,291 | Detector for signals with harmonically related components Lapsed on the fee record Ended Nov 2, 2016 · From the USPTO record | Lapsed on the fee record | Ended Nov 2, 2016 | From the USPTO record |
| US 6,275,189 | Passive target detection and identification system Formerly held Lapsed on the fee record Ended Aug 14, 2013 · From the USPTO record | Lapsed on the fee record | Ended Aug 14, 2013 | From the USPTO record |
| US 3,943,382 | Frequency operated switch Formerly held Term ended Term ended no later than Mar 9, 1996 · Low confidence | Term ended | Term ended no later than Mar 9, 1996 | Low confidence |
| US 3,994,456 | Steered lateral course transition control apparatus for aircraft area navigation systems Formerly held Term ended Term ended no later than Nov 30, 1996 · Low confidence | Term ended | Term ended no later than Nov 30, 1996 | Low confidence |
| US 4,005,490 | Magnetic disc memory Formerly held Term ended Term ended no later than Jan 25, 1997 · Low confidence | Term ended | Term ended no later than Jan 25, 1997 | Low confidence |
| US 4,065,914 | Offset baler with steerable control Formerly held Term ended Term ended no later than Jan 3, 1998 · Low confidence | Term ended | Term ended no later than Jan 3, 1998 | Low confidence |
| US 4,086,804 | Precision pneumatic pressure supply system Formerly held Term ended Term ended no later than May 2, 1998 · Low confidence | Term ended | Term ended no later than May 2, 1998 | Low confidence |
| US 4,104,629 | Marine radar interrogator-transponder target detection, identification, and range measurement system Formerly held Term ended Term ended no later than Aug 1, 1998 · Low confidence | Term ended | Term ended no later than Aug 1, 1998 | Low confidence |
| US 4,141,563 | Power transmission Formerly held Term ended Term ended no later than Feb 27, 1999 · Low confidence | Term ended | Term ended no later than Feb 27, 1999 | Low confidence |
| US 4,143,467 | Semi-automatic self-contained magnetic azimuth detector calibration apparatus and method Formerly held Term ended Term ended no later than Mar 13, 1999 · Low confidence | Term ended | Term ended no later than Mar 13, 1999 | Low confidence |