Pertec Computer Corporation
Records under this name other than patents Pertec Computer Corporation holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Pertec Computer Corporation
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,012,791 | Disk drive apparatus Term ended Term ended no later than Mar 15, 1997 · Low confidence | Term ended | Term ended no later than Mar 15, 1997 | Low confidence |
| US 4,027,217 | Speed control for a motor Term ended Term ended no later than May 31, 1997 · Low confidence | Term ended | Term ended no later than May 31, 1997 | Low confidence |
| US 4,055,814 | Phase locked loop for synchronizing VCO with digital data pulses Term ended Term ended no later than Oct 25, 1997 · Low confidence | Term ended | Term ended no later than Oct 25, 1997 | Low confidence |
| US 4,064,561 | CRT key station which is responsive to centralized control 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 4,078,173 | Light amplitude control system for position and motion transducers Term ended Term ended no later than Mar 7, 1998 · Low confidence | Term ended | Term ended no later than Mar 7, 1998 | Low confidence |
| US 4,078,192 | Synthesizer for multiphase waveforms Term ended Term ended no later than Mar 7, 1998 · Low confidence | Term ended | Term ended no later than Mar 7, 1998 | Low confidence |
| US 4,157,507 | Electronic system for detecting direction of motion Formerly held Term ended Term ended no later than Jun 5, 1999 · Low confidence | Term ended | Term ended no later than Jun 5, 1999 | Low confidence |
| US 4,167,772 | Circuit board mounting means Term ended Term ended no later than Sep 11, 1999 · Low confidence | Term ended | Term ended no later than Sep 11, 1999 | Low confidence |
| US 4,205,357 | Disk drive unit incorporating a field-replaceable fixed disk assembly Term ended Term ended no later than May 27, 2000 · Low confidence | Term ended | Term ended no later than May 27, 2000 | Low confidence |
| US 4,207,601 | Transient temperature compensation for moving head disk drive Term ended Term ended no later than Jun 10, 2000 · Low confidence | Term ended | Term ended no later than Jun 10, 2000 | Low confidence |