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:
Jul. 25, 1978
Filed:
May. 06, 1976
Applicant:
Inventors:
Goro Eto, Mobara, JP;
Chuichi Hikida, Mobara, JP;
Assignee:
Futaba Denshi Kogyo K. K., Chiba, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313513 ; 313220 ; 313317 ; 313497 ;
Abstract
An envelope for hermetically containing various functional elements of an indicator tube is disclosed. The envelope includes a base plate and a transparent cover mounted on a front surface of the base plate to form a chamber with the base plate which contains a plurality of the indicator elements. The cover comprises a channel plate having a transparent upper viewing window and side ridges or walls and a pair of strips to be bonded to the open side ends of the channel plate.