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:
Sep. 01, 1981
Filed:
Mar. 19, 1980
Applicant:
Inventors:
Masao Funahashi, Hirakata, JP;
Shigeru Maeda, Hirakata, JP;
Assignees:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Kyokuto Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
401241 ; 40442 ; 401522 ;
Abstract
At least one of two openable leaves is provided with at least one light-emitting diode, a thin battery for lighting the diode and a switch assembly. On opening the leaves, the diode emits light, which is extinguished when the leaves are closed to provide an indication of unique interest.