US3557013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for solidifying radioactive wastes by addition of lime to precipitate fluoride
Assignee: EMILIO MANUEL MENCHERO LOPEZ
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Filing: 1966-11-18
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Granted: 1971-01-19
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Expires: 1986-11-18
Abstract
Abstract A PROCESS FOR SOLIDIFYING RADIOACTIVE WASTES CONTAINING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE FLUORIDE, WATER-SOLUBLE SULPHATE AND MIXTURES THEREOF COMPRISING MIXING WITH AGITATION AT LEAST ONE LIQUID RADIOACTIVE WASTE WITH SUFFICIENT LIME TO NEUTRALIZE THE FREE SULPHURIC ACID AND IN PRECIPITATE THE FREE FLUORIDE, EVAPORATING THE WATER PRESENT IN THE MIXTURE UNTIL A HARDENABLE PASTE IS OBTAINED, HARDENING THE PASTE AND ENCLOSING THE RESULTING BLOCK IN A WATERTIGHT COVERING.
Inventors
- 👤 Emile Detilleux
- 👤 Werner Georg Hild
- 👤 Gianfranco Lazzaretto
- 👤 Emilio Manuel Menchero-Lopez
- 👤 Rudolf Rometsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:03
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/16; G21F9/162; G21F9/28; G21F9/34; G21F9/36
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |