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:
Mar. 20, 1979
Filed:
Aug. 06, 1975
Applicant:
Inventor:
Hubert Portmann, Colombier, CH;
Assignee:
Ebauches SA, Neuchatel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G04C / ;
U.S. Cl.
CPC ...
58 2 / ; 320-2 ;
Abstract
A safety device for battery-operated watches including an indicator device and an accumulator connected in parallel with the battery supplying the electronic circuit of the watch. The battery charges up the accumulator during normal use and when the battery runs down the indicator device gives a visual indication of battery condition and the accumulator continues to provide current to the electronic circuit of the watch for a time to enable the battery to be replaced.