US2977495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion source
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1959-06-03
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Granted: 1961-03-28
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Expires: 1979-06-03
Abstract
No abstract record available.
Inventors
- 👤 Klein Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:26
CPC Classifications
H; H01; H01J; H01J27/00; H01J27/02; H01J27/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2831134A
Cited
US2817032A
Cited
US2836750A
Cited
US2883568A
Cited
US2880337A
Cited
US2892114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |