US3033795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and process for removal of radioactive contaminants
Assignee: Purex Corp Ltd
•
Filing: 1957-06-10
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Granted: 1962-05-08
•
Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Brevik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:05
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/08; C23; C23G; C23G1/00; C23G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SOLID COMPOSITION OF MATTER FOR REMOVAL OF RADIOACTIVE CONTAMINANT FROM SURFACES, CONSISTING ESSENTAILLY OF ABOUT 10 TO ABOUT 90% BY WEIGHT OF SAID COMPOSITION, OF A COMPOUND OF THE GROUP CONSISTING OF SULFAMIC ACID AND WATER SOLUBLE SALTS OF SULFAMIC ACID, AND A WATER SOLUBLE FLUORIDE, THE RATIO OF SAID COMPOUND TO SAID FLUORIDE, RANGING FROM ABOUT 10 PARTS BY WEIGHT OF SAID COMPOUND TO ABOUT 90 PARTS FLUORIDE, TO ABOUT 90 PARTS OF SAID COMPOUND TO ABOUT 10 PARTS OF SAID FLUORIDE, SAID COMPOSITION WHEN DISSOLVED IN WATER GIVING A SULFAMATE ION, A FLUORIDE ION, AND A HYDROGEN ION.
Claim 2
Dependent Claim
101 words
A SOLID COMPOSITION OF MATTER FOR REMOVAL OF RADIOACTIVE CONTAMINANT FROM SURFACES, CONSISTING ESSENTAILLY OF ABOUT 10 TO ABOUT 90% BY WEIGHT OF SAID COMPOSITION, OF A COMPOUND OF THE GROUP CONSISTING OF SULFAMIC ACID AND WATER SOLUBLE SALTS OF SULFAMIC ACID, AND A WATER SOLUBLE FLUORIDE, THE RATIO OF SAID COMPOUND TO SAID FLUORIDE, RANGING FROM ABOUT 10 PARTS BY WEIGHT OF SAID COMPOUND TO ABOUT 90 PARTS FLUORIDE, TO ABOUT 90 PARTS OF SAID COMPOUND TO ABOUT 10 PARTS OF SAID FLUORIDE, SAID COMPOSITION WHEN DISSOLVED IN WATER GIVING A SULFAMATE ION, A FLUORIDE ION, AND A HYDROGEN ION.
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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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |