Practical Technology, Inc.
Records under this name other than patents Practical Technology, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 5 of 5 · Back to Practical Technology, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,936,683 | Synthetic opal and photonic crystal Lapsed on the fee record Ended Jan 20, 2019 · From the USPTO record | Lapsed on the fee record | Ended Jan 20, 2019 | From the USPTO record |
| US 8,003,280 | System and method for holographic lithographic production of a photonic crystal Lapsed on the fee record Ended Aug 23, 2015 · From the USPTO record | Lapsed on the fee record | Ended Aug 23, 2015 | From the USPTO record |
| US 7,794,538 | Self-assembly method, opal, photonic band gap, and light source Lapsed on the fee record Ended Sep 14, 2014 · From the USPTO record | Lapsed on the fee record | Ended Sep 14, 2014 | From the USPTO record |
| US 7,767,903 | System and method for thermal to electric conversion Lapsed on the fee record Ended Aug 3, 2014 · From the USPTO record | Lapsed on the fee record | Ended Aug 3, 2014 | From the USPTO record |
| US 4,534,593 | Vehicle seat lumbar support insert and method of utilizing the same Term ended Term ended no later than Aug 13, 2005 · Low confidence | Term ended | Term ended no later than Aug 13, 2005 | Low confidence |