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:
Mar. 13, 1990
Filed:
Jan. 18, 1989
Applicant:
Inventors:
Akitoshi Komiya, Kanagawa, JP;
Taketo Kamei, Kanagawa, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; C03B / ;
U.S. Cl.
CPC ...
65 77 ; 65110 ; 445 26 ;
Abstract
A manufacturing method of a fluorescent lamp having a bent discharge path, which comprises the steps of press-molding a straight glass tube, after heating and softening it, into a bulb having a bent discharge path, while blowing a pressurized gas into the discharge path. A fluorescent lamp having a U-shaped discharge path which is integrally connected through a narrow plate. A slit is formed at least in a portion of the narrow plate adjacent to a sealing portion.