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.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Aug. 03, 2017
Applicant:
Rolex SA, Geneva, CH;
Inventors:
Sergio de Almeida Graça, Bienne, CH;
Vannina Linck, Saint-Julien-en-Genevois, FR;
Assignee:
ROLEX SA, Geneva, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 11/02 (2006.01); G04B 3/00 (2006.01); G04B 5/00 (2006.01); G04B 7/00 (2006.01); G04B 13/02 (2006.01); G04B 27/04 (2006.01);
U.S. Cl.
CPC ...
G04B 3/006 (2013.01); G04B 5/00 (2013.01); G04B 7/00 (2013.01); G04B 11/024 (2013.01); G04B 13/026 (2013.01); G04B 27/04 (2013.01);
Abstract
A component of a winding device, in particular an automatic winding device, of a timepiece movement, wherein it is made of austenitic stainless steel and wherein it comprises at least one friction surface hardened by carbon or nitrogen type atoms introduced into the austenitic stainless steel over a predetermined depth.