US2625529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of conditioning soils
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-02-12
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Granted: 1953-01-13
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Expires: 1972-02-12
Abstract
No abstract record available.
Inventors
- 👤 Ross M Hedrick
- 👤 David T Mowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/20; C09K17/22; Y; Y10; Y10S; Y10S106/00; Y10S106/90; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
THE METHOD OF IMPROVING THE TILTH OF SURFACE SOILS NORMALLY SUBJECT TO SLAKING OR EROSION, WHICH COMPRISES INCORPORATING IN THE SOIL IN THE PRESENCE OF SOIL MOISTURE FROM 0.001 TO 2.0 PER CENT BASED IN SAID SOIL OF A SYNTHETIC WATER-SOLUBLE POLYELECTROLYTE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND HAVING MOLECULAR DERIVED BY THE POLYMERIZATION OF AT LEAST ONE MONOOLEFINIC COMPOUND THROUGH THE ALIPHATIC UNSATURATED GROUP, SAID STRUCTURE BEING SUBSTANTIALLY FREE OF CROSS-LINKING.
Claim 2
Independent Claim
77 words
THE METHOD OF IMPROVING THE TILTH OF SURFACE SOILS NORMALLY SUBJECT TO SLAKING OR EROSION, WHICH COMPRISES INCORPORATING IN THE SOIL IN THE PRESENCE OF SOIL MOISTURE FROM 0.001 TO 2.0 PER CENT BASED IN SAID SOIL OF A SYNTHETIC WATER-SOLUBLE POLYELECTROLYTE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND HAVING MOLECULAR DERIVED BY THE POLYMERIZATION OF AT LEAST ONE MONOOLEFINIC COMPOUND THROUGH THE ALIPHATIC UNSATURATED GROUP, SAID STRUCTURE BEING SUBSTANTIALLY FREE OF CROSS-LINKING.
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) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |