IP Library › Granted Patent US 4,477,908
Granted Patent Utility
US 4,477,908 · App. 06/357,501

Cold cathode construction

Inventors: Shinan-Chur S. Sheng, Joseph B. Lastovka
Patented Case View Patent ↗
Granted: Oct 16, 1984 Filed: Mar 12, 1982
Inventors
Shinan-Chur S. Sheng
Joseph B. Lastovka
Assignee (at issue)
Spectra-Physics, 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.

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 4,477,908
App. No.
06/357,501
Filed
1982-03-12
Granted
1984-10-16
Kind
A