Patent US3166636A successfully refreshed from Google Patents.
US2677770A
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US
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Ion source
Assignee: United States Atomic Energy Commission
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Filing: 1953-02-25
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Granted: 1954-05-04
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Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 Henry D Smyth
- 👤 Lincoln G Smith
- 👤 Mack Julian Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:44
CPC Classifications
H; H01; H01J; H01J27/00; H01J27/02; H01J27/08; H01J49/00; H01J49/02; H01J49/10; H01J49/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |