Inventa Electronics Co., Ltd.
Records under this name other than patents Inventa Electronics Co., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 9 of 9 · Back to Inventa Electronics Co., Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,644,106 | Apparatus for timely controlling the sound characteristic of a signaling means of a voice communication device Formerly held Term ended Term ended no later than Feb 17, 2007 · Low confidence | Term ended | Term ended no later than Feb 17, 2007 | Low confidence |
| US 4,794,640 | Switching control apparatus for intercom-telephone sets Term ended Term ended no later than Dec 27, 2008 · Low confidence | Term ended | Term ended no later than Dec 27, 2008 | Low confidence |
| US 4,802,208 | Hot-line device for telephone sets Term ended Term ended no later than Jan 31, 2009 · Low confidence | Term ended | Term ended no later than Jan 31, 2009 | Low confidence |
| US 4,825,464 | Successive key operating mechanism for telephone dialing Term ended Term ended no later than Apr 25, 2009 · Low confidence | Term ended | Term ended no later than Apr 25, 2009 | Low confidence |
| US 4,835,625 | Method of recording timing data generated by a central processing unit onto a tape for digital display Term ended Term ended no later than May 30, 2009 · Low confidence | Term ended | Term ended no later than May 30, 2009 | Low confidence |
| US 4,847,895 | Controllable annunciator using ring signal Term ended Term ended no later than Jul 11, 2009 · Low confidence | Term ended | Term ended no later than Jul 11, 2009 | Low confidence |
| US 4,856,056 | Apparatus for timely controlling the sound characteristic of a signaling means of a voice communication device Term ended Term ended no later than Aug 8, 2009 · Low confidence | Term ended | Term ended no later than Aug 8, 2009 | Low confidence |
| US 4,881,260 | Automatic telephone answering device with multiple outgoing messages and selecting means Term ended Term ended no later than Nov 14, 2009 · Low confidence | Term ended | Term ended no later than Nov 14, 2009 | Low confidence |
| US 5,216,709 | Electronic device for providing information related to an input telephone number Term ended Term ended no later than Jun 1, 2013 · Low confidence | Term ended | Term ended no later than Jun 1, 2013 | Low confidence |