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:
May. 08, 1990
Filed:
Jun. 24, 1988
Applicant:
Inventors:
Hiroshi Imamura, Kadoma, JP;
Makoto Toho, Kadoma, JP;
Eiji Shiohama, Kadoma, JP;
Shoiti Morii, Kadoma, JP;
Koji Hiramatsu, Kadoma, JP;
Assignee:
Matsushita Electric Works, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313493 ; 313610 ; 313634 ; 313318 ;
Abstract
A colored fluorescent display lamp assembly has a lamp housing in which a plurality of discharge chambers are defined. Discharge holes of the respective discharge chambers are disposed in a central area of a bottom wall of the housing. A lamp base, formed by a relatively thin lightweight material, carries therein an electrode common to all of the discharge chambers. The base has an open end sealed to the central area of the lamp housing bottom wall to enclose the discharge holes. The lamp assembly can be thereby minimized in weight and size.