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:
Jan. 16, 1990
Filed:
Jul. 05, 1988
Applicant:
Inventors:
Bernard Smith, Ocean Township, Monmouth County, NJ (US);
Gerard L Freeman, Freehold Township, Monmouth County, NJ (US);
Louis E Branovich, Howell Township Monmouth County, NJ (US);
Assignee:
The United States of America as represented by the Secretary of America, Washington, DC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
427 78 ; 427 77 ; 445 46 ; 445 50 ; 445 51 ; 445 58 ; 3133 / ; 313630 ; 313632 ;
Abstract
A tungsten-iridium billet is impregnated with a chemical mixture of barium xide, strontium oxide, and aluminum oxide, the impregnated billet heated, and the surface of the impregnated billet desired for emission exposed to an overcoating of rhodium.