Bunka Shutter Co., Ltd.
Records under this name other than the patents Bunka Shutter Co., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 5 patents it holds.
Showing 1 to 8 of 8 · Back to Bunka Shutter Co., Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,070,640 | Walk-through type waterproof screen apparatus Term ended Term ended Oct 22, 2017 · From the USPTO record | Term ended | Term ended Oct 22, 2017 | From the USPTO record |
| US 6,630,235 | Bullet-proof glass screen, and bullet-proof glass screen device Lapsed on the fee record Ended Oct 7, 2015 · From the USPTO record | Lapsed on the fee record | Ended Oct 7, 2015 | From the USPTO record |
| US 6,065,546 | Fire extinguishing and smoke eliminating apparatus and method using water mist Lapsed on the fee record Ended May 23, 2008 · From the USPTO record | Lapsed on the fee record | Ended May 23, 2008 | From the USPTO record |
| US 3,989,084 | Rolling shutter Term ended Term ended no later than Nov 2, 1996 · Low confidence | Term ended | Term ended no later than Nov 2, 1996 | Low confidence |
| US 4,595,043 | Shutter device Term ended Term ended no later than Jun 17, 2006 · Low confidence | Term ended | Term ended no later than Jun 17, 2006 | Low confidence |
| US 4,838,331 | Slat opening/closing drive mechanism in shutter equipment Term ended Term ended no later than Jun 13, 2009 · Low confidence | Term ended | Term ended no later than Jun 13, 2009 | Low confidence |
| US 5,065,806 | Panel shutter assembly Term ended Term ended no later than Nov 19, 2011 · Low confidence | Term ended | Term ended no later than Nov 19, 2011 | Low confidence |
| US 5,072,766 | Panel shutter assembly Term ended Term ended no later than Dec 17, 2011 · Low confidence | Term ended | Term ended no later than Dec 17, 2011 | Low confidence |