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US3492238A
Expired / Lapsed
US
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Sodium phosphate-citric acid-edta cleaning solutions for scaled ferrous metals
Assignee: United States Atomic Energy Commission
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Filing: 1966-12-05
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Granted: 1970-01-27
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Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Cornel Wohlberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:31
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/24; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/16; C11D7/22; C11D7/26; C11D7/265; C11D7/32; C11D7/3245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2783200A
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US2890175A
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US3003899A
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US2994664A
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US3063944A
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US3013909A
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US3003898A
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US3242093A
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US3397149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |