Patent US4854435A successfully refreshed from Google Patents.
US3597152A
Expired / Lapsed
US
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De-watering of metal surfaces
Assignee: Imperial Chemical Industries Ltd
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Filing: 1969-07-01
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Granted: 1971-08-03
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Expires: 1989-07-01
Abstract
Abstract METALLIC SURFACES ARE DE-WATERED AND AT THE SAME TIME GIVEN A PROTECTIVE COATING OF OIL BY TREATING THE SURFACES WITH A COMPOSITION COMPRISING AN UNSTABLE EMULSION INE WATER OF A NON-VOLATILE OIL CONTAINING AN OIL-SOLUBLE SURFACE ACTIVE AGENT. PREFERABLY THE COMPOSITION CONTAINS AT LEAST 50% BY WEIGHT OF WATER. PREFERRED PROPORTIONS OF SURFACE ACTIVE AGENT LIE IN THE RANGE FROM 1% TO 10% BY WEIGHT OF THE OIL. OPTIONALLY, THE OIL MAY ALSO CONTAIN A CORROSION INHIBITOR, PREFERABLY IN A PROPORTION OF UP TO 20% BY WEIGHT.
Inventors
- 👤 Richard Elliott Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:50
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/06; C23F; C23F15/00; F; F26; F26B; F26B5/00; F26B5/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |