Marshall Amplification PLC
Records under this name other than the patents Marshall Amplification PLC 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 15 patents it holds.
Showing 1 to 3 of 3 · Back to Marshall Amplification PLC
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D1,095,494 | Speaker Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 7,888,577 | Instrument amplification system Lapsed on the fee record Ended Feb 15, 2023 · From the USPTO record | Lapsed on the fee record | Ended Feb 15, 2023 | From the USPTO record |
| US 5,467,400 | Solid state audio amplifier emulating a tube audio amplifier Term ended Term ended no later than Nov 14, 2015 · Low confidence | Term ended | Term ended no later than Nov 14, 2015 | Low confidence |