Granted Patent
Utility
US 5,218,263 · App. 07/742,363
High thermal efficiency dispenser-cathode and method of manufacture therefor
Inventors:
Louis R. Falce, Glenn S. Breeze
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Aug 8, 1991
Inventors
Louis R. Falce
Glenn S. Breeze
Assignee (at issue)
Ceradyne, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.