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EP1423387
European procedure
Extract from the Register of European Patents
EP Federated register: EP1423387
| PHOTOCHROMIC BIS-NAPHTHOPYRAN COMPOUNDS AND METHODS FOR THEIR MANUFACTURE | ||||
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Application No.EP02797735 |
Publication No.EP1423387 |
ApplicantESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) |
IPC |
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Proprietor | Invalidation date |
Not in force since |
Renewal fees last paid |
Record last updated |
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