Basic Measuring Instruments
Records under this name other than patents Basic Measuring Instruments holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Basic Measuring Instruments
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,642,563 | Power line impulse measurement system Term ended Term ended no later than Feb 10, 2007 · Low confidence | Term ended | Term ended no later than Feb 10, 2007 | Low confidence |
| US 4,694,402 | Waveform disturbance detection apparatus and method Term ended Term ended no later than Sep 15, 2007 · Low confidence | Term ended | Term ended no later than Sep 15, 2007 | Low confidence |
| US 5,014,229 | Method and apparatus for calibrating transducer/amplifier systems Term ended Term ended no later than May 7, 2011 · Low confidence | Term ended | Term ended no later than May 7, 2011 | Low confidence |
| US 5,089,979 | Apparatus for digital calibration of detachable transducers Term ended Term ended no later than Feb 18, 2012 · Low confidence | Term ended | Term ended no later than Feb 18, 2012 | Low confidence |
| US 5,184,066 | Method and apparatus for disabling all operations of an electronic instrument except for an automatic test procedure Term ended Term ended no later than Feb 2, 2013 · Low confidence | Term ended | Term ended no later than Feb 2, 2013 | Low confidence |
| US 5,212,441 | Harmonic-adjusted power factor meter Term ended Term ended no later than May 18, 2013 · Low confidence | Term ended | Term ended no later than May 18, 2013 | Low confidence |
| US 5,270,637 | Impulse direction detector for ac power systems Term ended Term ended no later than Dec 14, 2013 · Low confidence | Term ended | Term ended no later than Dec 14, 2013 | Low confidence |
| US 5,298,854 | Harmonic-adjusted watt-hour meter Term ended Term ended no later than Mar 29, 2014 · Low confidence | Term ended | Term ended no later than Mar 29, 2014 | Low confidence |
| US 5,298,855 | Harmonic-adjusted power factor meter Term ended Term ended no later than Mar 29, 2014 · Low confidence | Term ended | Term ended no later than Mar 29, 2014 | Low confidence |
| US 5,298,856 | Harmonic-adjusted power factor meter Term ended Term ended no later than Mar 29, 2014 · Low confidence | Term ended | Term ended no later than Mar 29, 2014 | Low confidence |