US3636142A
Expired / Lapsed
US
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Triorthophosphate esters of ethoxylated triols
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1968-04-04
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Granted: 1972-01-18
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Expires: 1988-04-04
Abstract
Abstract TRIORTHOPHOSPHATE ESTER OF WTHOXYLATED TRIOLS HAVING FROM 3 TO 20 CARBON ATOMS AND 2 TO 50 MOLES OF ETHYLENE OXIDE. THE ALKALI METAL AND AMMONIUM SALTS OF SAID ESTER MAY BE USED TO INHIBIT THE DEPOSITION OF WATER INSOLUBLE SALTS IN AQUEOUS SYSTEM SUCH AS SUBSURFACE FORMATIONS CONTAINING BRINE.
Inventors
- 👤 William G De Pierri Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:18
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/14
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |