IP Library › Granted Patent US 4,645,978
Granted Patent Utility
US 4,645,978 · App. 06/621,579

Radial geometry electron beam controlled switch utilizing wire-ion-plasma electron source

Inventors: Robin J. Harvey, Hayden E. Gallagher
Patented Case View Patent ↗
Granted: Feb 24, 1987 Filed: Jun 18, 1984
Inventors
Robin J. Harvey
Hayden E. Gallagher
Assignee (at issue)
Hughes Aircraft Company

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,645,978
App. No.
06/621,579
Filed
1984-06-18
Granted
1987-02-24
Kind
A