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:
Oct. 28, 1997
Filed:
Dec. 09, 1996
Applicant:
Inventors:
Harumitsu Asazuma, Ibaraki, JP;
Hiroshi Koyama, Ibaraki, JP;
Assignee:
Oji Yuka Goseishi Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F / ; B32B / ;
U.S. Cl.
CPC ...
40564 ; 40615 ; 4283184 ; 4283197 ; 428908 ; 428910 ; 428 34 ; 428515 ;
Abstract
An illuminated sign board which comprises a film having printing, a frame, and a light source is described. The film is a semi-transparent film made of a stretched resin film containing a finely divided powder of a white inorganic material. The semi-transparent film satisfies the following requirements (1) to (4):