US3137820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-current pulsed ion source
Assignee: High Voltage Engineering Corp
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Filing: 1958-05-01
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Granted: 1964-06-16
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Expires: 1978-05-01
Abstract
No abstract record available.
Inventors
- 👤 George C Mcfarland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:55
CPC Classifications
H; H01; H01J; H01J27/00; H01J27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN ION SOURCE FOR THE PRODUCTION OF HIGH CURRENTS OF IONS, CONSISTING OF AN ION DISCHARGE TUBE HAVING AN APERTURED ELECTRODE AND AN ANODE, MEANS FOR INTRODUCING A SUITABLE GAS TO BE IONIZED INTO SAID ION DISCHARGE TUBE, MEANS FOR APPLYING HIGH-VOLTAGE PULSES BETWEEN SAID APERTURED ELECTRODE AND SAID ANODE SO THAT SAID ANODE IS PERIODICALLY RAISED TO A POSITIVE VOLTAGE SUFFICIENTLY HIGH TO INITIATE AN IONIZATION DISCHARGE WITHIN SAID ION DISCHARGE TUBE, A PULSE-FORMING NETWORK ADAPTED TO DELIVER HIGH
Claim 2
Dependent Claim
80 words
AN ION SOURCE FOR THE PRODUCTION OF HIGH CURRENTS OF IONS, CONSISTING OF AN ION DISCHARGE TUBE HAVING AN APERTURED ELECTRODE AND AN ANODE, MEANS FOR INTRODUCING A SUITABLE GAS TO BE IONIZED INTO SAID ION DISCHARGE TUBE, MEANS FOR APPLYING HIGH-VOLTAGE PULSES BETWEEN SAID APERTURED ELECTRODE AND SAID ANODE SO THAT SAID ANODE IS PERIODICALLY RAISED TO A POSITIVE VOLTAGE SUFFICIENTLY HIGH TO INITIATE AN IONIZATION DISCHARGE WITHIN SAID ION DISCHARGE TUBE, A PULSE-FORMING NETWORK ADAPTED TO DELIVER HIGH
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |