Horology: time measuring systems or devices – Cases – Of particular material
Reexamination Certificate
2006-10-17
2006-10-17
Miska, Vit W. (Department: 2841)
Horology: time measuring systems or devices
Cases
Of particular material
C427S404000, C428S209000, C428S210000, C428S457000, C428S472000
Reexamination Certificate
active
07121717
ABSTRACT:
This ceramic element, the visible surface of which includes features, is intended to be fitted onto a watch case. This visible surface has, at each feature, a hollow having the shape of said feature, with a depth at least equal to 0.05 mm, the side walls of said hollow being essentially perpendicular to said visible surface, the bottom of said hollows having a first tie layer of Ti, Ta, Cr or Th type, with a thickness of at least 100 nm and at least a second layer from the group Au, Ag, CrN, Ni, Pt, TiN, ZrN, Pd or alloys thereof with a thickness of at least 100 nm.
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Grippo Eric
Passaquin William
Miska Vit W.
Rolex S. A.
Sturm & Fix LLP
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