US2802303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Erosion control
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-06-04
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Granted: 1957-08-13
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Expires: 1973-06-04
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Weeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:19
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/32; C09K17/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
A METHOD OF MINIMIZING EROSION OF A SOIL SURFACE WHICH COMPRISES COATING THE SOIL SURFACE WITH AN AQUEOUS SLURRY OF A MIXTURE OF BENTONITE AND FROM 5 TO 20 PERCENT (BASED ON SAID CLAY) OF A WATER-SOLUBLE ALKALI-METAL SALT OF A CARBOXY-ALKYL CELLULOSE.
References Cited (Backward Citations)
US1608917A
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US1882377A
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US1962806A
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US2498480A
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US2648165A
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US2570537A
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US2625529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |