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:
Oct. 18, 1977
Filed:
Sep. 28, 1976
Applicant:
Inventors:
Stephen Duncan Ferris, Warren, NJ (US);
David Charles Joy, Summit, NJ (US);
Harry John Leamy, New Providence, NJ (US);
Louis David Longinotti, South Plainfield, NJ (US);
Paul Herman Schmidt, Chatham, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01K / ;
U.S. Cl.
CPC ...
3133 / ; 252509 ; 252521 ; 313336 ;
Abstract
An electron source using a single lanthanum hexaboride crystal oriented so the emitting surface is defined by a {110} crystal plane.