US3567784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohol alkoxylates
Assignee: Shell USA Inc
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Filing: 1969-06-13
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Granted: 1971-03-02
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Expires: 1989-06-13
Abstract
Abstract CERTAIN ETHYLENE OXIDE-PROPYLENE OXIDE-ETHYLENE OXIDE DERIVATIVES OF MIXTURES OF C10-C15 DETERGENT RANGE ALCOHOLS OF CRITICAL ETHYLENE OXIDE-PROPYLENE OXIDE RATIOS AND CRITICAL RATIOS OF ETHYLENE OXIDE TO CARBON ATOMS IN THE ALCOHOL MOIETY, USEFUL AS SURFACTANTS, EXHIBIT SUPERIOR PHYSICAL PROPERTIES SUCH AS HIGH CLOUD POINTS AND LOW GEL TEMPERATURES.
Inventors
- 👤 William T Tsatsos
- 👤 Richard F Schimbor
- 👤 Rupert C Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:29
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/722
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |