Patent US3753904A successfully refreshed from Google Patents.
US3753904A
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US
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Soluble oil additive concentrate
Assignee: Union Oil Company of California
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Filing: 1971-03-10
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Granted: 1973-08-21
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Expires: 1991-03-10
Abstract
Abstract AN ADDITIVE CONCENTRATE FOR THE FORMULATION OF SOLUBLE OILS COMPRISING AN ADMIXTURE OF ABOUT 1 TO 12 PARTS OF SURFACE ACTIVE ALKYL ARYL SULFONATES PER PART OF ETHYLENE GLYCOL MONOBUTYL ETHER. THE SURFACE ACTIVE SULFONATE CAN BE A MIXTURE OF PREFERENTIALLY OIL-SOLUBLE AND PREFERENTIALLY WATER-SOLUBLE ALKYL ARYL SULFONATES.
Inventors
- 👤 Le Roy Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:38
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936; Y10S507/937; Y10S507/938
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |