Patent US3822213A successfully refreshed from Google Patents.
US3822213A
Expired / Lapsed
US
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Halogenated hydrocarbon compositions and uses thereof
Assignee: Imperial Chemical Industries Ltd
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Filing: 1972-01-14
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Granted: 1974-07-02
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Expires: 1992-01-14
Abstract
Abstract A CLEANING COMPOSITION WHICH IS A WATER-IN-OIL EMUSION COMPRISING ONE OR MORE HALOGENATED HYDROCARBON SOLVENTS, FROM 5% TO 70% BY WEIGHT OF WATER AND A SURFACE ACTIVE AGENT OR MIXTURE OF SURFACE-ACTIVE AGENTS FREE FROM FATTY ACIDS AND SALTS THEREOF OF WHICH THE 1% BY WEIGHT SOLUTION IN TRICHLOROETHYLENE HAS AN INTERFACIAL TENSION AGAINST WATER OF LESS THAN 10 DYNES/CM. AND A CONTACT ANGLE ADVANCING AGAINST WATER ON A POLISHED STAINLESS STEEL SUBSTRATE WHICH IS LOWER THAN THE CONTACT ANGLE OF TRICHLOROETHYLENE AND DIFFERS THEREFROM BY NOT MORE THAN 30 DEGRESS.
Inventors
- 👤 P Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:50
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/43; C23; C23G; C23G5/00; C23G5/06
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |