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US2947867A
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US
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Control for isotope separating apparatus
Assignee: Individual
•
Filing: 1946-08-15
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Granted: 1960-08-02
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Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Howard W Brackney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:50
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/26; H01J49/28; H01J49/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2355658A
Cited
US2341551A
Cited
US2456426A
Cited
US2755387A
Cited
US2745965A
Cited
US2476005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |