SP4CON, LLC
Records under this name other than patents SP4CON, LLC 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 SP4CON, LLC
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,281,466 | Projection welding of an aluminum sheet Formerly held Term ended Term ended Jun 28, 2019 · From the USPTO record | Term ended | Term ended Jun 28, 2019 | From the USPTO record |
| US 6,791,056 | Projection welding of an aluminum sheet Formerly held Lapsed on the fee record Ended Sep 14, 2016 · From the USPTO record | Lapsed on the fee record | Ended Sep 14, 2016 | From the USPTO record |
| US 6,054,668 | Method and apparatus of projection welding Lapsed on the fee record Ended Apr 25, 2012 · From the USPTO record | Lapsed on the fee record | Ended Apr 25, 2012 | From the USPTO record |
| US 6,037,558 | Integrated low inertia projection welding head and cylinder Lapsed on the fee record Ended Mar 14, 2012 · From the USPTO record | Lapsed on the fee record | Ended Mar 14, 2012 | From the USPTO record |
| US 6,506,998 | Projection Welding of an Aluminum Sheet Lapsed on the fee record Ended Jan 14, 2011 · Low confidence | Lapsed on the fee record | Ended Jan 14, 2011 | Low confidence |
| US 5,125,554 | C-frame sheet splicer Term ended Term ended no later than Jun 30, 2012 · Low confidence | Term ended | Term ended no later than Jun 30, 2012 | Low confidence |
| US 5,714,730 | Welding gun for projection welding Term ended Term ended no later than Feb 3, 2018 · Low confidence | Term ended | Term ended no later than Feb 3, 2018 | Low confidence |
| US 5,744,773 | Resistance heating process and apparatus Term ended Term ended no later than Apr 28, 2018 · Low confidence | Term ended | Term ended no later than Apr 28, 2018 | Low confidence |