Precision General, Inc.
Records under this name other than patents Precision General, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Precision General, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,556,196 | Method and apparatus for sealing valve stems Formerly held Term ended Term ended no later than Dec 3, 2005 · Low confidence | Term ended | Term ended no later than Dec 3, 2005 | Low confidence |
| US 4,582,089 | Valve manifold having a removable flange Formerly held Term ended Term ended no later than Apr 15, 2006 · Low confidence | Term ended | Term ended no later than Apr 15, 2006 | Low confidence |
| US 4,597,581 | Pressure seal for valve stems and the like Formerly held Term ended Term ended no later than Jul 1, 2006 · Low confidence | Term ended | Term ended no later than Jul 1, 2006 | Low confidence |
| US 4,630,629 | Valve with compressible valve stem and valve body seals Formerly held Term ended Term ended no later than Dec 23, 2006 · Low confidence | Term ended | Term ended no later than Dec 23, 2006 | Low confidence |
| US 4,655,251 | Valve having hard and soft seats Formerly held Term ended Term ended no later than Apr 7, 2007 · Low confidence | Term ended | Term ended no later than Apr 7, 2007 | Low confidence |
| US 4,672,728 | Pressure signal instrumentation having removable flanges and mounting method therefor Formerly held Term ended Term ended no later than Jun 16, 2007 · Low confidence | Term ended | Term ended no later than Jun 16, 2007 | Low confidence |
| US 4,745,938 | Outside seal and yoke valve Formerly held Term ended Term ended no later than May 24, 2008 · Low confidence | Term ended | Term ended no later than May 24, 2008 | Low confidence |
| US 4,819,973 | Hermetic connection device and method of providing hermetic connection Term ended Term ended no later than Apr 11, 2009 · Low confidence | Term ended | Term ended no later than Apr 11, 2009 | Low confidence |
| US 4,862,754 | Portable piston style sample cylinder Formerly held Term ended Term ended no later than Sep 5, 2009 · Low confidence | Term ended | Term ended no later than Sep 5, 2009 | Low confidence |
| US 4,920,626 | Stabilized connector flange for interconnecting an instrument manifold with an orifice plate assembly Formerly held Term ended Term ended no later than May 1, 2010 · Low confidence | Term ended | Term ended no later than May 1, 2010 | Low confidence |