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:
Oct. 25, 2016

Filed:

Dec. 21, 2015
Applicant:

Montres Breguet S.a., L'Abbaye, CH;

Inventor:

Eric Goeller, Colombier, CH;

Assignee:

Montres Breguet S.A., L'Abbaye, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 19/253 (2006.01); G04B 19/24 (2006.01); G04B 19/25 (2006.01);
U.S. Cl.
CPC ...
G04B 19/24 (2013.01); G04B 19/25 (2013.01); G04B 19/2536 (2013.01);
Abstract

Calendar mechanism for timepieces, displaying the duration of the current month and comprising a month cam whose periphery is accessible to a feeler-spindle of a perpetual calendar device to obtain the duration of the current month, this calendar mechanism and the month cam being updated monthly on each current month change by the perpetual calendar device, the month cam is generalised to an integer number of years each including a virtual 28-day month of February, the calendar mechanism includes a leap year mechanism, external to the month cam, and which is arranged to insert radially, every four years in February, a first corrector finger between the periphery and the feeler-spindle to inform the latter that the current month of February has 29 days instead of 28.


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