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. 17, 1987
Filed:
Apr. 14, 1986
Applicant:
Inventors:
Hubert Brunner, Weil, DE;
August Liepold, Munich, DE;
Assignee:
Agfa Gevaert Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; G03B / ; C09K / ;
U.S. Cl.
CPC ...
25230135 ; 215365 ; 215366 ; 242199 ; 25230116 ;
Abstract
A magnetic tape cassette, consisting of opaque plastics material, contains, according to the invention, a display window with a scale impressed therein, consisting of transparent plastics material as well as one or more fluorescent plastics materials finely-divided therein, the ratio between the light emission surface area and the light absorption surface area of the display window being from 1:10 to 1:2000.