Patent US2874057A successfully refreshed from Google Patents.
US2874057A
Expired / Lapsed
US
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Cementiferous paints
Assignee: British Iron and Steel Research Association BISRA
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Filing: 1954-01-06
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Granted: 1959-02-17
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Expires: 1974-01-06
Abstract
No abstract record available.
Inventors
- 👤 Mayne John Edwin Oakley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:01
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/34; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23F13/14; C04B2111/00; C04B2111/00474; C04B2111/00482; C23F2201/00; C23F2201/02; C23F2213/00; C23F2213/20; C23F2213/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A CEMENTIFEROUS PAINT FOR THE PROTECTION OF FERROUS METAL SURFACES CONSISTING ESSENTIALLY OF A MIXTURE OF ZINC DUST AND AN AQUEOUS SOLUTION CONTAINING AT LEAST ABOUT 20% OF AN ALKALI METAL PHOSPHATE OF THE GROUP CONSISTING OF, MONOPOTASSIUM DIHYDROGEN PHOSPHATE, DIPOTAS SIUM HYDROGEN PHOSPHATE, TRIPOTASSIUM PHOSPHATES, AND A MIXTURE OF POTASSIUM PHOSPHATES, AND A MIXTURE OF A POTAS SIUM PHOSPATHE AND A SODIUM PHOSPHATE, SAID AQUEOUS SOLUTION HAVING A PH VALUE WITHIN THE RANGE FROM ABOUT 8 TO ABOUT 9.9 AND THE WEIGHT RATION OF ZINC DUST TO SAID ALKALI METAL PHOSPHATE BEING WITHIN THE RANGE FROM 1:1 TO 25:1.
Claim 2
Dependent Claim
100 words
A CEMENTIFEROUS PAINT FOR THE PROTECTION OF FERROUS METAL SURFACES CONSISTING ESSENTIALLY OF A MIXTURE OF ZINC DUST AND AN AQUEOUS SOLUTION CONTAINING AT LEAST ABOUT 20% OF AN ALKALI METAL PHOSPHATE OF THE GROUP CONSISTING OF, MONOPOTASSIUM DIHYDROGEN PHOSPHATE, DIPOTAS SIUM HYDROGEN PHOSPHATE, TRIPOTASSIUM PHOSPHATES, AND A MIXTURE OF POTASSIUM PHOSPHATES, AND A MIXTURE OF A POTAS SIUM PHOSPATHE AND A SODIUM PHOSPHATE, SAID AQUEOUS SOLUTION HAVING A PH VALUE WITHIN THE RANGE FROM ABOUT 8 TO ABOUT 9.9 AND THE WEIGHT RATION OF ZINC DUST TO SAID ALKALI METAL PHOSPHATE BEING WITHIN THE RANGE FROM 1:1 TO 25:1.
References Cited (Backward Citations)
US1007069A
Cited
US1359137A
Cited
US2137370A
Cited
US2328540A
Cited
US2332209A
Cited
US2357269A
Cited
GB588127A
Cited
US2540108A
Cited
US2471907A
Cited
US2702768A
Cited
US2568424A
Cited
GB705365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |