| GB0214159.6 |
| NP1 |
| GB2376834 |
| Expired |
| 21 December 2000 |
| 19 June 2002 |
| 24 December 2002 |
Grant of Patent (Notification under Section 18(4)):
24 May 2003
Publication of notice in the Patents and Designs Journal (Section 25(1)):
25 June 2003 |
| 19 December 2019 |
| 20 |
| 20 December 2020 |
| PCT/GB2000/004953 (Filed on 21 December 2000 in English) |
| WO2001/047318 (Dated 28 June 2001 in English) |
21 December 1999 in United Kingdom - Document: 9930010
14 February 2000 in United Kingdom - Document: 0003136
24 August 2000 in United Kingdom - Document: 0020941 |
| Loudspeaker using an electro-active device |
| Loudspeaker using an electro-active device |
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