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:
Feb. 09, 1982
Filed:
Mar. 12, 1979
Applicant:
Inventor:
Jean-Francois Schwab, Schwalbach, CH;
Assignee:
Quarz-Zeit AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ; G04B / ;
U.S. Cl.
CPC ...
368 66 ; 368 80 ;
Abstract
A battery-driven clock with a timing stage which emits a control signal of a certain frequency to an electromechanical or electronic indicator stage, and a warning stage establishing the end of the service life of the battery. In the warning situation the warning stage influences the frequency of the control signal in the sense of advancing the clock.
Schwab, Jean-Francois. (1982). Battery-driven clock with indicator of the end of life of the battery (U.S. Patent No. 4315328). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4315328
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile