US2909697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing ions of a given element
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1956-03-23
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Granted: 1959-10-20
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Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 Bernas Rene
- 👤 Druaux Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:17
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/10; H01J49/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN APPARATUS FOR PRODUCING IONS OF A GIVEN ELEMENT WHICH COMPRISES, IN COMBINATION, AN ENVELOPE FILLED WITH A GASEOUS ATMOSPHERE,ELECTRONIC MEANS FOR PRODUCING A DISCHARGE IN SAID ATMOSPHERE, AN ELECTRODE IN SAID ENVELOPE LOCATED IN THE PORTION OF SAID DISCHARGE WHERE A PLASMA IS FORMED, SAID ELECTRODE BEING AT A POTENTIAL MORE NAGATIVE THAN SAID PLASMA, WHEREBY POSITIVE IONS OF SAID GASEOUS ATMOSPHERE ARE MADE TO BOMBARD SAID ELECTRODE AND TO KNOCK OUT PARTICLES OF SAID ELEMENT FROM SAID ELECTRODE, SAID PARTICLES BEING JONIZED BY SAID DISCHARGE PRODUCING MEANS, AND MEANS FOR EXTRACTING A BEAM OF SAID IONIZED PARTICLES FROM SAID ENVELOPE.
Claim 2
Independent Claim
102 words
AN APPARATUS FOR PRODUCING IONS OF A GIVEN ELEMENT WHICH COMPRISES, IN COMBINATION, AN ENVELOPE FILLED WITH A GASEOUS ATMOSPHERE,ELECTRONIC MEANS FOR PRODUCING A DISCHARGE IN SAID ATMOSPHERE, AN ELECTRODE IN SAID ENVELOPE LOCATED IN THE PORTION OF SAID DISCHARGE WHERE A PLASMA IS FORMED, SAID ELECTRODE BEING AT A POTENTIAL MORE NAGATIVE THAN SAID PLASMA, WHEREBY POSITIVE IONS OF SAID GASEOUS ATMOSPHERE ARE MADE TO BOMBARD SAID ELECTRODE AND TO KNOCK OUT PARTICLES OF SAID ELEMENT FROM SAID ELECTRODE, SAID PARTICLES BEING JONIZED BY SAID DISCHARGE PRODUCING MEANS, AND MEANS FOR EXTRACTING A BEAM OF SAID IONIZED PARTICLES FROM SAID ENVELOPE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |