US3013909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of chemical decontamination of stainless steel nuclear facilities
Assignee: Individual
•
Filing: 1960-03-31
•
Granted: 1961-12-19
•
Expires: 1980-03-31
Abstract
No abstract record available.
Inventors
- 👤 Guyon P Pancer
- 👤 John L Zegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:38
CPC Classifications
C; C23; C23G; C23G1/00; G; G21; G21F; G21F9/00; G21F9/001; G21F9/002; G21F9/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD OF DECONTAMINATING A STEEL SURFACE COATED WITH A RADIOACTIVE SCALE COMPRISING THE STEPS OF FLUSHING SAID SURFACE CONTINUOUSLY WITH A CAUSTIC PERMANGANATE SOLUTION UNTIL THE DECONTAMINATION LEVEL OF SAID SURFACE STABILIZES, AND THEN DRYING SAID SURFACE, FLUSHING SAID SURFACE WITH A CITRIC ACID SOLUTION, AND THEN WASHING SAID SURFACE TO REMOVE SUBSTANTIALLY ALL TRACES OF SAID SOLUTIONS.
Claim 2
Independent Claim
59 words
A METHOD OF DECONTAMINATING A STEEL SURFACE COATED WITH A RADIOACTIVE SCALE COMPRISING THE STEPS OF FLUSHING SAID SURFACE CONTINUOUSLY WITH A CAUSTIC PERMANGANATE SOLUTION UNTIL THE DECONTAMINATION LEVEL OF SAID SURFACE STABILIZES, AND THEN DRYING SAID SURFACE, FLUSHING SAID SURFACE WITH A CITRIC ACID SOLUTION, AND THEN WASHING SAID SURFACE TO REMOVE SUBSTANTIALLY ALL TRACES OF SAID SOLUTIONS.
References Cited (Backward Citations)
US1899734A
Cited
US2428364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |