Global Patent Index - EP 0775951 A3

EP 0775951 A3 2000-09-06 - Procedure to manufacture watch cases

Title (en)

Procedure to manufacture watch cases

Title (de)

Verfahren zur Herstellung von Uhrengehäusen

Title (fr)

Procédé de fabrication de boîtes de montre

Publication

EP 0775951 A3 (EN)

Application

EP 96500151 A

Priority

ES 9502302 A

Abstract (en)

[origin: EP0775951A2] Procedure for the manufacture of watch cases, based on a disposable cylindrical metal container (1) that involves cutting the container cross sectionally in four portions (2 and 3), out of which the intermediate ones (3) are then diametrically cut to obtain semi-cylindrical shells (4) that are rolled up to form a spiral (5) and which are then subjected to an axial pressing procedure using a die (6-7) which shape corresponds with that of the watch case to be manufactured. A ring shaped part (8) is obtained upon which base is then mounted a crown (9) fitted with a peripheral rib (10). <IMAGE>

IPC 1-7 (main, further and additional classification)

G04D 3/00; G04B 37/22

IPC 8 full level (invention and additional information)

G04B 37/22 (2006.01); G04D 3/00 (2006.01)

CPC (invention and additional information)

G04B 37/22 (2013.01); G04D 3/0061 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0775951 A2 19970528; EP 0775951 A3 20000906; ES 2130015 A1 19990616; ES 2130015 B1 20000116

INPADOC legal status


2000-12-06 [18D] DEEMED TO BE WITHDRAWN

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2000-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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2000-10-18 [D17D] SEARCH REPORT (DELETED)

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2000-09-13 [D17D] SEARCH REPORT (DELETED)

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2000-09-06 [AK] DESIGNATED CONTRACTING STATES:

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2000-09-06 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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1997-05-28 [AK] DESIGNATED CONTRACTING STATES:

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1997-05-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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