Global Patent Index - EP 0814388 B1

EP 0814388 B1 20020904 - Watch glass

Title (en)

Watch glass

Title (de)

Uhrglas

Title (fr)

Glace de montre

Publication

EP 0814388 B1 20020904 (FR)

Application

EP 97108556 A 19970528

Priority

CH 152996 A 19960619

Abstract (en)

[origin: EP0814388A1] The watch glass (1) consists of a thin plate (2) which is circular and about 2mm thick. The inner face of the glass has blind emplacements (5,15) which are respectively circular and rectangular in section and are formed by grinding or ultrasonic machining. Lens-pieces (10,16) made to the same height as the emplacements (5,15) are introduced into them and secured by an epoxy glue. The thin plate (2) and the magnifying inserts (10,16) may be made of any hard optically transparent material plain or coloured such as glass, spinel or corundum.

IPC 1-7

G04B 39/00

IPC 8 full level

G04B 39/00 (2006.01)

CPC (source: EP)

G04B 39/008 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0814388 A1 19971229; EP 0814388 B1 20020904; CH 690521 A5 20000929; DE 69715105 D1 20021010; DE 69715105 T2 20030313

DOCDB simple family (application)

EP 97108556 A 19970528; CH 152996 A 19960619; DE 69715105 T 19970528