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. 14, 1984
Filed:
Jun. 30, 1981
Applicant:
Inventors:
Hubert Grange, Grenoble, FR;
Robert Meyer, Saint Ismier, FR;
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340763 ; 340785 ; 350357 ; 350363 ;
Abstract
Electrolytic device for light display on a dark background comprising a light source which illuminates a cell formed by two insulating walls between which is an electrolyte. One wall has an electrode comprising a plurality of segments for display and the other wall has a counter-electrode. The display is obtained by electrochemical deposition of dark coating material on the electrode.