US3545964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gold recovery process
Assignee: United States Atomic Energy Commission
•
Filing: 1968-04-18
•
Granted: 1970-12-08
•
Expires: 1988-04-18
Abstract
No abstract record available.
Inventors
- 👤 Spenst M Hansen
- 👤 David F Snoeberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:48
CPC Classifications
C; C22; C22B; C22B11/00; C22B11/06; C01; C01G; C01G7/00; C01G7/003; C22B3/00; C22B3/04; C22B3/16; C22B3/1608; C22B3/1616; C22B3/1625; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2839387A
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US2896930A
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US2777764A
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US2950964A
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US3317313A
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US3150960A
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US3278232A
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US3465818A
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US3475163A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |