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. 19, 1987
Filed:
Mar. 12, 1985
Applicant:
Inventors:
Goro Eto, Mobara, JP;
Shigeo Itoh, Mobara, JP;
Mikio Yokoyama, Mobara, JP;
Takeshi Tonegawa, Mobara, JP;
Assignee:
Futaba Denshi Kogyo Kabushiki Kaisha, Mobara, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156286 ; 65 43 ; 156 89 ; 220 / ; 3134 / ; 445 43 ;
Abstract
A process for making a fluorescent display device capable of accomplishing the mass production of a tipless fluorescent display device with good reliability and productivity is disclosed. The process is adapted to carry out, in a single chamber, a step of hermetically bonding an anode substrate and a casing together to form a hermetic envelope and a step of sealing the envelope in vacua.