The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 30, 2014

Filed:

May. 20, 2014
Applicant:

Manufacture ET Fabrique DE Montres ET Chronometres, Ulysse Nardin Le Locie SA, Le Locie, CH;

Inventors:

Stephane Von Gunten, Corcelles, CH;

Pierre Gygax, Cortaillod, CH;

Lucas Humair, Bevaix, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 17/04 (2006.01); G04B 17/06 (2006.01);
U.S. Cl.
CPC ...
G04B 17/063 (2013.01);
Abstract

A spiral spring () for the movement of a watch, includes a plurality of coplanar leaves () wound into one another. Furthermore, the inner ends of each leaf are rigidly connected to a single collet (). The leaves () and the collar () are produced as a single part.


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