US2908547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of uranium, plutonium, and fission products
Assignee: Individual
•
Filing: 1949-09-19
•
Granted: 1959-10-13
•
Expires: 1969-09-19
Abstract
No abstract record available.
Inventors
- 👤 Nicholls Cyril Minchin
- 👤 Wells Ivor
- 👤 Spence Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:01
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; C01; C01G; C01G56/00; C01G56/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |