Hamel AG
Records under this name other than patents Hamel AG holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 7 of 7 · Back to Hamel AG
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,467,250 | Method for the manufacture of elastic twisted yarns Lapsed on the fee record Ended Oct 22, 2006 · From the USPTO record | Lapsed on the fee record | Ended Oct 22, 2006 | From the USPTO record |
| US 6,293,079 | Hollow spindle, in particular for the manufacture of elastic twisted yarns Formerly held Lapsed on the fee record Ended Sep 25, 2005 · From the USPTO record | Lapsed on the fee record | Ended Sep 25, 2005 | From the USPTO record |
| US 6,021,631 | Integrated doubling and twisting method and three-for-one twisting spindle Lapsed on the fee record Ended Feb 8, 2004 · From the USPTO record | Lapsed on the fee record | Ended Feb 8, 2004 | From the USPTO record |
| US 4,163,357 | Apparatus for cable-twisting two yarns Formerly held Term ended Term ended no later than Aug 7, 1999 · Low confidence | Term ended | Term ended no later than Aug 7, 1999 | Low confidence |
| US 4,391,087 | Twisting apparatus Term ended Term ended no later than Jul 5, 2003 · Low confidence | Term ended | Term ended no later than Jul 5, 2003 | Low confidence |
| US 5,515,671 | Method for building a specific yarn reserve at a rotating balloon limiter of a multiple twisting spindle and a multiple twisting spindle with rotating balloon limiter Term ended Term ended no later than May 14, 2016 · Low confidence | Term ended | Term ended no later than May 14, 2016 | Low confidence |
| US 5,979,154 | Multi-twisting spindle with rotating balloon limiter Term ended Term ended no later than Nov 9, 2019 · Low confidence | Term ended | Term ended no later than Nov 9, 2019 | Low confidence |