US2754422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Source of highly stripped ions
Assignee: Individual
•
Filing: 1952-07-30
•
Granted: 1956-07-10
•
Expires: 1972-07-30
Abstract
No abstract record available.
Inventors
- 👤 Edward J Lofgren
- 👤 Warren W Eukel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:13
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/14; H; H01; H01J; H01J49/00; H01J49/02; H01J49/10; H01J49/14; H01J49/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN IMPROVED ION SOURCE COMPRISING A MATERIAL TO BE IONIZED, AN ELECTRON EMISSIVE CATHODE, ELECTRON ACCELERATING MEANS COACTING WITH SAID CATHODE TO ACCELERATE ELECTRONS THEREFROM TOWARD SAID MATERIAL TO BE IONIZED, AND MEANS MAINTAINING A SUBSTANTIAL LENGTH OF ELECTRON TRAVERSE ION FREE, SAID ELECTRON ACCELERATING MEANS IMPARTING TO SAID ELECTRONS AN ENERGY IN EXCESS OF THE TOTAL IONIZATION POTENTIAL OF ATOMS OF SAID MATERIAL WHEREBY ATOMS OF SAID MATERIAL ARE STRIPPED OF ORBITAL ELECTRONS.
Claim 2
Dependent Claim
74 words
AN IMPROVED ION SOURCE COMPRISING A MATERIAL TO BE IONIZED, AN ELECTRON EMISSIVE CATHODE, ELECTRON ACCELERATING MEANS COACTING WITH SAID CATHODE TO ACCELERATE ELECTRONS THEREFROM TOWARD SAID MATERIAL TO BE IONIZED, AND MEANS MAINTAINING A SUBSTANTIAL LENGTH OF ELECTRON TRAVERSE ION FREE, SAID ELECTRON ACCELERATING MEANS IMPARTING TO SAID ELECTRONS AN ENERGY IN EXCESS OF THE TOTAL IONIZATION POTENTIAL OF ATOMS OF SAID MATERIAL WHEREBY ATOMS OF SAID MATERIAL ARE STRIPPED OF ORBITAL ELECTRONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |