Patent FR1193786A successfully refreshed from Google Patents.
Patent US2939803A successfully refreshed from Google Patents.
US2939803A
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US
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Method of impregnating a porous material
Assignee: Individual
•
Filing: 1956-01-06
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Granted: 1960-06-07
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Expires: 1976-01-06
Abstract
No abstract record available.
Inventors
- 👤 Gordon N Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:32
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/64; B; B01; B01J; B01J23/00; B01J23/12; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A METHOD OF IMPREGNATING A POROUS BODY WITH AN INORGANIC URANIUM-CONTAINING SALT COMPRISING DISSOLVING A WATER-SOLUBLE URANIUM-CONTAINING SALT IN WATER, SATURATING THE INTERCOMMUNICATING PORES OF SAID POROUS BODY WITH SAID SLAT SOLUTION, DIFFUSING A WATER-SOLUBLE GAS SELECTED FROM THE GROUP CONSISTING OF AMMONIA, HYDROGEN SULFIDE, SULFUR OXIDES, AND HYDROHALIC ACIDS INTO THE INTERCOMMUNICATING PORES OF SAID BODY, SAID GAS IN WATER BEING CHEMICALLY REACTING WITH SAID WATER-SOLUBLE URANIUM-CONTAINING SALT IN SAID WATER SOLVENT TO FORM A NONWATER-SOLUBLE URANIUM-CONTAINING PRECIPITATE, AND EVAPORATING THE VOLATILE UNPRECIPITATED PRODUCTS FROM SAID INTERCOMMUNICATING PORES WHEREBY SAID URANIUM-CONTAINING PRECIPITATE IS UNIFORMLY DISTRIBUTED IN SAID INTERCOMMUNICATING PORES OF SAID POROUS BODY.
References Cited (Backward Citations)
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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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |