Patent US3853453A successfully refreshed from Google Patents.
Patent US3557164A successfully refreshed from Google Patents.
US3557164A
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Inhibition of deposition of water insoluble compounds in aqueous systems
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1968-04-04
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Granted: 1971-01-19
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Expires: 1988-04-04
Abstract
Abstract DEPOSITION OF WATER INSOLUBLE COMPOUNDS FROM AQUE OUS SYSTEMS CONTAINING THEM IS INHIBITED BY ADDING TO THE AQUEOUS SYSTEM, WHICH MAY BE A SUBSURFACE FORMATION WATER OR BRINE, A SMALL BUT EFFECTIVE AMOUNT OF A PHOSPHATE ESTER OF ETHOXYLATED ESTERIFIED TRIOL OR THE ALKALI METAL OR AMMONIUM SALTS THEREOF.
Inventors
- 👤 William G De Pierri Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:36
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/14; Y; Y10; Y10S; Y10S507/00; Y10S507/927
Claims Analysis
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |