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. 30, 1991
Filed:
Dec. 20, 1989
Applicant:
Inventor:
John W Shaffer, Danvers, MA (US);
Assignee:
GTE Products Corporation, Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313116 ; 313117 ;
Abstract
A glass electric lamp bulb, and an electric lamp, such as, for example, a tungsten halogen lamp, which includes such a lamp bulb, is provided. The inner surface of the lamp bulb includes a light-diffusing coating containing silica particles and a soluble silicate binder such as potassium silicate.