IP Library › Granted Patent US 3,955,118
Granted Patent Utility
US 3,955,118 · App. 05/551,217

Cold-cathode ion source

Inventor: John P. Flemming
Patented Case View Patent ↗
Granted: May 4, 1976 Filed: Feb 19, 1975
Inventor
John P. Flemming
Assignee (at issue)
Western Electric Company, 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.

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Quick Facts
Patent No.
US 3,955,118
App. No.
05/551,217
Filed
1975-02-19
Granted
1976-05-04
Kind
A