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:
Nov. 27, 1979
Filed:
Nov. 04, 1977
Applicant:
Inventor:
Singo Ichikawa, Sayama, JP;
Assignee:
Citizen Watch Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G04C / ;
U.S. Cl.
CPC ...
58 2 / ; 58 855 ; 58 58 ; 58 5 / ; 5815 / ;
Abstract
A timepiece provided with a display device for warning a battery life is disclosed. The timepiece comprises a correction signal control circuit which is controlled by two exteriorly operable switches and which control a battery voltage detection circuit whose sampling operation together with the warning display are interlocked with the operation of one of the exteriorly operable switches which functions as a digit selection switch, correction switch and display change-over switch. A warning display for a short time can be noticed by a bearer by operating the exteriorly operable switch without fail.