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Patent
   D591191
Priority
Jun 26 2007
Filed
Dec 18 2007
Issued
Apr 28 2009
Expiry
Apr 28 2023
Inventors
Besse, Lau…
Assg.orig
Maurice La…
Assg.curr
Maurice La…
Entity
unknown
Referenced by
5
References
26
Maint.:
n/a
The ornemental design for a balance wheel with flat hairspring, as shown and described.

FIG. 1 is a top view of the balance wheel with flat hairspring.

FIG. 2 is a bottom view of the balance wheel with flat hairspring.

FIG. 3 is a side view from the bottom of FIG. 1.

FIG. 4 is a side view from the top of FIG. 1.

FIG. 5 is a side view from the right of FIG. 1.

FIG. 6 is a side view from the left of FIG. 1; and,

FIG. 7 is a perspective view of the balance wheel with flat hairspring.
INVENTORS:

Besse, Laurent, Sourice, Damien

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D891284, Mar 02 2018 TUDOR WATCH U S A , LLC Watch movement
D894777, Mar 02 2018 TUDOR WATCH U S A , LLC Watch movement
D894778, Mar 02 2018 TUDOR WATCH U S A , LLC Watch movement
D894779, Mar 06 2018 ROLEX WATCH USA, INC Watch movement
D913127, Dec 03 2018 Turlen Holding SA Watch
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
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1752773,
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273138,
3154912,
3528237,
3534546,
3564840,
3600943,
3791251,
3813872,
3934403, May 06 1974 Timex Corporation Fixation of double conducting hairspring
3934406, Nov 29 1973 OMEGA Louis Brandt & Frere S.A. Balance wheel assembly and method for manufacture thereof
3943701, Jan 08 1975 Timex Corporation Regulator and balance bridge arrangement for a horological device
3950938, May 06 1974 Timex Corporation Two conductor hairspring-hub arrangement for electric watches
3958410, Jun 02 1975 Timex Corporation Termination device from hairspring-hub to drive coil on two conductor hairspring
469914,
5907524, Oct 21 1997 ETA SA Fabriques d'Ebauches Method for manufacturing a balance-spring obtained according to said method
617301,
7070321, Oct 05 2004 Montres Breguet SA Antitripping device for watch-escapement
7293913, Jul 02 2004 Nivarox-FAR S.A. Balance-spring with altered outer curve
7344302, Apr 29 2003 Patek Philippe SA Geneve Control member with a balance wheel and a planar spiral for a watch or clock movement
7350967, Feb 24 2005 Seiko Instruments Inc Speed control mechanism and mechanical timepiece having the same
20060002241,
14427,
D339751, Mar 12 1991 Girard-Perregaux S.A. Wrist watch
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 12 2007BESSE, LAURENTMaurice Lacroix SAASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0202620949 pdf
Jul 12 2007SOURICE, DAMIENMaurice Lacroix SAASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0202620949 pdf
Dec 18 2007Maurice Lacroix SA(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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