US2698252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lime-fly ash compositions for stabilizing finely divided materials such as soils
Assignee: CONVERSION SYSTEMS OF PENNSYLVANIA Inc
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Filing: 1951-08-18
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Granted: 1954-12-28
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Expires: 1971-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jules E Havelin
- 👤 Kalm Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:15
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/36; C; C04; C04B; C04B28/00; C04B28/02; C04B28/10; C09; C09K; C09K17/00; C09K17/02; C09K17/06; C04B2111/00; C04B2111/00474; C04B2111/00732; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S264/00; Y10S264/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A STABILIZED SOIL COMPOSITION OF MATTER CONSISTING ESSENTIALLY BY WEIGHT OF ABOUT 10% TO ABOUT 30% INCLUSIVE OF CRUDE FLY ASH, ABOUT 70% TO ABOUT 90% INCLUSIVE OF SOIL HAVING A FINENESS MODULUS BELOW 1.7, THE SUM OF THE PERCENTAGES OF CRUDE FLY ASH PLUS SOIL BEING SUBSTANTIALLY EQUAL TO 100, AND ABOUT 2% TO ABOUT 9% INCLUSIVE OF LIME, THE PERCENT LIME BEING ON THE WEIGHT OF CRUDE FLY ASH PLUS SOIL.
Claim 2
Dependent Claim
73 words
A STABILIZED SOIL COMPOSITION OF MATTER CONSISTING ESSENTIALLY BY WEIGHT OF ABOUT 10% TO ABOUT 30% INCLUSIVE OF CRUDE FLY ASH, ABOUT 70% TO ABOUT 90% INCLUSIVE OF SOIL HAVING A FINENESS MODULUS BELOW 1.7, THE SUM OF THE PERCENTAGES OF CRUDE FLY ASH PLUS SOIL BEING SUBSTANTIALLY EQUAL TO 100, AND ABOUT 2% TO ABOUT 9% INCLUSIVE OF LIME, THE PERCENT LIME BEING ON THE WEIGHT OF CRUDE FLY ASH PLUS SOIL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |