US2946919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion sources using a high-frequency field
Assignee: Thales SA
•
Filing: 1957-09-18
•
Granted: 1960-07-26
•
Expires: 1977-09-18
Abstract
No abstract record available.
Inventors
- 👤 Lerbs Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:11
CPC Classifications
H; H01; H01J; H01J27/00; H01J27/02; H01J27/16; H01J27/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2557961A
Cited
US2633539A
Cited
US2670649A
Cited
US2831134A
Cited
US2798181A
Cited
US2826708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |