Engineering Specialties, Inc.
Records under this name other than patents Engineering Specialties, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 8 of 8 · Back to Engineering Specialties, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,238,569 | Flotation pile oil/water separator apparatus Lapsed on the fee record Ended May 29, 2005 · From the USPTO record | Lapsed on the fee record | Ended May 29, 2005 | From the USPTO record |
| US 6,214,220 | Combined process vessel apparatus Lapsed on the fee record Ended Apr 10, 2005 · From the USPTO record | Lapsed on the fee record | Ended Apr 10, 2005 | From the USPTO record |
| US 4,252,649 | Method and apparatus for recovering oil Term ended Term ended no later than Feb 24, 2001 · Low confidence | Term ended | Term ended no later than Feb 24, 2001 | Low confidence |
| US 4,372,757 | Offshore platform deck drainage Term ended Term ended no later than Feb 8, 2003 · Low confidence | Term ended | Term ended no later than Feb 8, 2003 | Low confidence |
| US 4,428,841 | Offshore pollution prevention Term ended Term ended no later than Jan 31, 2004 · Low confidence | Term ended | Term ended no later than Jan 31, 2004 | Low confidence |
| US 4,618,430 | Process and apparatus for removing scum from a liquid surface Term ended Term ended no later than Oct 21, 2006 · Low confidence | Term ended | Term ended no later than Oct 21, 2006 | Low confidence |
| US 5,632,498 | Snowmobile dolly system Term ended Term ended no later than May 27, 2017 · Low confidence | Term ended | Term ended no later than May 27, 2017 | Low confidence |
| US 5,681,458 | Water clarification employing rotating drum skimmer Term ended Term ended no later than Oct 28, 2017 · Low confidence | Term ended | Term ended no later than Oct 28, 2017 | Low confidence |