US2642400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-active composition
Assignee: Monsanto Chemicals Ltd
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Filing: 1950-05-10
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Granted: 1953-06-16
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Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jay C Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/002; C11D1/02; C11D1/12; C11D1/22; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SURFACE-ACTIVE COMPOSITION COMPOSED OF A MIXTURE OF FROM 5 PERCENT TO 95 PERCENT OF A COMPOUND OF THE GROUP CONSISTING OF THE SODIUM ALKYLBENZENE, ALKYLTOLUENE AND ALKYLXYLENE SULFONATES, WHEREIN THE ALKYL GROUP HAS FROM 9 TO 18 CARBON ATOMS AND FROM 5 PERCENT TO 95 PERCENT OF THE CONDENSATION PRODUCT OF 1 MOLE OF A TERTIARY ALIPHATIC MERCAPTAN WITH FROM 5 TO 20 MOLES OF ETHYLENE OXIDE.
Claim 2
Dependent Claim
68 words
A SURFACE-ACTIVE COMPOSITION COMPOSED OF A MIXTURE OF FROM 5 PERCENT TO 95 PERCENT OF A COMPOUND OF THE GROUP CONSISTING OF THE SODIUM ALKYLBENZENE, ALKYLTOLUENE AND ALKYLXYLENE SULFONATES, WHEREIN THE ALKYL GROUP HAS FROM 9 TO 18 CARBON ATOMS AND FROM 5 PERCENT TO 95 PERCENT OF THE CONDENSATION PRODUCT OF 1 MOLE OF A TERTIARY ALIPHATIC MERCAPTAN WITH FROM 5 TO 20 MOLES OF ETHYLENE OXIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |