Petrel
Records under this name other than patents Petrel 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 Petrel
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,736,425 | Security marking method, materials provided with security marks Term ended Term ended no later than Apr 5, 2008 · Low confidence | Term ended | Term ended no later than Apr 5, 2008 | Low confidence |
| US 4,833,311 | Security markings, material provided with security marks, and apparatus to detect the security mark Term ended Term ended no later than May 23, 2009 · Low confidence | Term ended | Term ended no later than May 23, 2009 | Low confidence |
| US 4,891,505 | Security markings, material provided with security marks, and apparatus to detect the security mark Term ended Term ended no later than Jan 2, 2010 · Low confidence | Term ended | Term ended no later than Jan 2, 2010 | Low confidence |
| US 4,921,534 | Security markings, material provided with security marks, and apparatus to detect the security mark Term ended Term ended no later than May 1, 2010 · Low confidence | Term ended | Term ended no later than May 1, 2010 | Low confidence |
| US 5,118,349 | Security markings, material provided with security marks, and apparatus to detect the security mark Term ended Term ended no later than Jun 2, 2012 · Low confidence | Term ended | Term ended no later than Jun 2, 2012 | Low confidence |