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FIELD-EMISSION CATHODE CAPABLE OF FORMING AN ELECTRON BEAM HAVING A HIGH CURRENT DENSITY AND A LOW RIPPLE

08/962,874 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Nov. 3, 1997
Examiner MICHAEL J SMITH
Class 313
Art Group 2875
Patent No. 5,929,557
Case Type Utility - 313/309000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 291453/1996
Last Updated: 2 years, 5 months ago
Date # Transaction