Technical Operations Limited
Records under this name other than patents Technical Operations Limited holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 3,945,731 | Color control system for optical image apparatus Term ended Term ended no later than Mar 23, 1996 · Low confidence | Term ended | Term ended no later than Mar 23, 1996 | Low confidence |
| US 3,947,105 | Production of colored designs Term ended Term ended no later than Mar 30, 1996 · Low confidence | Term ended | Term ended no later than Mar 30, 1996 | Low confidence |
| US 4,003,634 | Optical control assembly for a color design viewer Term ended Term ended no later than Jan 18, 1997 · Low confidence | Term ended | Term ended no later than Jan 18, 1997 | Low confidence |
| US 4,063,799 | Photographic imaging Term ended Term ended no later than Dec 20, 1997 · Low confidence | Term ended | Term ended no later than Dec 20, 1997 | Low confidence |
| US 4,118,107 | Optical detection of geometric configurations Term ended Term ended no later than Oct 3, 1998 · Low confidence | Term ended | Term ended no later than Oct 3, 1998 | Low confidence |
| US 4,163,154 | Neutron personnel dosimeter Term ended Term ended no later than Jul 31, 1999 · Low confidence | Term ended | Term ended no later than Jul 31, 1999 | Low confidence |
| US 4,211,928 | Linear storage projector Term ended Term ended no later than Jul 8, 2000 · Low confidence | Term ended | Term ended no later than Jul 8, 2000 | Low confidence |
| US 4,225,790 | Storage reel assembly Term ended Term ended no later than Sep 30, 2000 · Low confidence | Term ended | Term ended no later than Sep 30, 2000 | Low confidence |
| US 4,281,252 | Coupling apparatus for portable radiography systems Term ended Term ended no later than Jul 28, 2001 · Low confidence | Term ended | Term ended no later than Jul 28, 2001 | Low confidence |
| US 4,384,240 | Regenerative braking system for three-terminal d.c. motor Formerly held Term ended Term ended no later than May 17, 2003 · Low confidence | Term ended | Term ended no later than May 17, 2003 | Low confidence |