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. 24, 1988
Filed:
Sep. 26, 1986
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313493 ; 313634 ;
Abstract
A fluorescent lamp device includes a main body having a base, and a fluorescent lamp supported by the main body and electrically connected to the base. The lamp has a plurality of U-shaped glass tubes which define a zigzagging discharge channel. Each glass tube is provided with a pair of straight portions, each of which has a flat cross section.
Imamura, Hitoshi. (1988). Fluorescent lamp device having oval cross sectional tubes (U.S. Patent No. 4746835). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4746835
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile