US2778809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for the improvement of soil structure
Assignee: Dow Chemical Co
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Filing: 1953-01-02
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Granted: 1957-01-22
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Expires: 1973-01-02
Abstract
No abstract record available.
Inventors
- 👤 Dorsey R Mussell
- 👤 Harold H Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:51
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/20; C09K17/22; C09K17/32; C09K17/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COMPOSITION FOR THE TREATMENT OF SOIL WHICH COMPRISES A FINELY DIVIDED SOLID CARRIER AND IN INTIMATE AD714 O. G.-53 MIXTURE THEREWITH A WATER-SOLUBLE SULFONATE OF A POLY(ALKENYL-AROMATIC) COMPOUND, SAID POLY (ALKYENYL-AROMATIC) COMPOUND HAVING A SOLUTION VISCOSITY BEFORE SULFONATION OF AT LEAST 500 CENTIPOISES AND SAID SULFONATE HAVING A BROOKFIELD VISCOSITY OF FROM ABOUT 35 TO 1000 CENTIPOISES.
Claim 2
Dependent Claim
58 words
A COMPOSITION FOR THE TREATMENT OF SOIL WHICH COMPRISES A FINELY DIVIDED SOLID CARRIER AND IN INTIMATE AD714 O. G.-53 MIXTURE THEREWITH A WATER-SOLUBLE SULFONATE OF A POLY(ALKENYL-AROMATIC) COMPOUND, SAID POLY (ALKYENYL-AROMATIC) COMPOUND HAVING A SOLUTION VISCOSITY BEFORE SULFONATION OF AT LEAST 500 CENTIPOISES AND SAID SULFONATE HAVING A BROOKFIELD VISCOSITY OF FROM ABOUT 35 TO 1000 CENTIPOISES.
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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |