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. 30, 1989
Filed:
Sep. 29, 1987
Applicant:
Inventors:
Diana M Essock, Moreland Hills, OH (US);
Richard F Malinowski, Chesterland, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313332 ; 313331 ; 313623 ; 106 74 ; 106 1405 ; 1062867 ; 148279 ; 174 5064 ; 427117 ; 4271261 ; 428432 ;
Abstract
The life of electric lamps exposed to an oxidizing environment at elevated temperature and having hermetic seals between molybdenum and a vitreous material is substantially increased by applying alkali metal silicate to the surface of that portion of the molybdenum in the seal area which is exposed to said oxidizing environment.