Ferranti plc
Records under this name other than patents Ferranti plc holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,048,730 | Light beam deflection means particularly for range compensation in weapons training aids Term ended Term ended no later than Sep 20, 1997 · Low confidence | Term ended | Term ended no later than Sep 20, 1997 | Low confidence |
| US 4,053,336 | Method of manufacturing a semiconductor integrated circuit device having a conductive plane and a diffused network of conductive tracks Formerly held Term ended Term ended no later than Oct 11, 1997 · Low confidence | Term ended | Term ended no later than Oct 11, 1997 | Low confidence |
| US 4,079,509 | Method of manufacturing semi-conductor devices Formerly held Term ended Term ended no later than Mar 21, 1998 · Low confidence | Term ended | Term ended no later than Mar 21, 1998 | Low confidence |
| US 4,160,455 | Heater for heating fluid in a body cavity Formerly held Term ended Term ended no later than Jul 10, 1999 · Low confidence | Term ended | Term ended no later than Jul 10, 1999 | Low confidence |
| US 4,161,742 | Semiconductor devices with matched resistor portions Formerly held Term ended Term ended no later than Jul 17, 1999 · Low confidence | Term ended | Term ended no later than Jul 17, 1999 | Low confidence |
| US 4,223,335 | Semiconductor device body having identical isolated composite resistor regions Formerly held Term ended Term ended no later than Sep 16, 2000 · Low confidence | Term ended | Term ended no later than Sep 16, 2000 | Low confidence |
| US 4,336,528 | Semiconductor resistive network Formerly held Term ended Term ended no later than Jun 22, 2002 · Low confidence | Term ended | Term ended no later than Jun 22, 2002 | Low confidence |
| US 4,340,969 | Laser apparatus Formerly held Term ended Term ended no later than Jul 20, 2002 · Low confidence | Term ended | Term ended no later than Jul 20, 2002 | Low confidence |
| US 4,378,465 | Apparatus for generating a signal representative of a co-ordinate position of a movable indicating member Term ended Term ended no later than Mar 29, 2003 · Low confidence | Term ended | Term ended no later than Mar 29, 2003 | Low confidence |
| US 4,389,697 | Circuit assembly having a component with leads extending therefrom and a connector both supported on a planar substrate Term ended Term ended no later than Jun 21, 2003 · Low confidence | Term ended | Term ended no later than Jun 21, 2003 | Low confidence |