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Status EP deemed void Patent No. 1422436
Application No. 02026147.5 Date of Filing 25/11/2002
Date Grant Published 26/10/2005 Application Published 26/05/2004
Title of Invention Spiral watch spring and its method of production
Inventors Bourgeois, Claude
Perret, André
Hoogerwerf, Arnold Christiaan
Current Proprietor CSEM Centre Suisse d'Electronique et de
Microtechnique SA

Jaquet-Droz 1
2007 Neuchâtel
Publication Language French
Translation Received Date
28/04/2006 European Patent deemed always void.