US3793218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil slick dispersant and method
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1971-06-15
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Granted: 1974-02-19
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Expires: 1991-06-15
Abstract
Abstract MIXTURES OF C10-C20 ALIPHATIC CARBOXYLIC ACIDS OR THE SORBITAN MONOESTERS THEREOF, SORBITAN MONOACYLATES, POLYOXYALKYLENE ADDUCTS OF THE SORBITAN MONOESTERS AND DIALKYL SULFOUCCINATE SALTS HAVING A HYDROPHILIC-LIPOPHILIC BALANCE OF ABOUT 9 TO ABOUT 11.5, PREFERABLY ABOUT 10 TO 11, ARE HIGHLY EFFICIENT, NONTOXIC BIODEGRADABLE DISPERSANTS FOR OIL SLICKS. OILS SLICK DISPERSAL IS ACHIEVED BY SUPPLYING THE SIPERSANT COMPOSITON TO THE OIL SLICK EITHER ALONE OR ADMIXED WITH A SUITABLE SOLVENT. AN ADVANTAGE OF THESE DISPERSANT COMPOSITIONS IS THAT THEY REQUIRE LITTLE OR NO MIXING ENERGY IN ORDER TO ACHIEVE DISPERSION OF THE SLICKS.
Inventors
- 👤 G Canevari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04; Y10S516/06; Y10S516/905; Y10S516/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |