Patent US2942993A successfully refreshed from Google Patents.
US2942993A
Expired / Lapsed
US
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Method of accelerating the setting of lime-fly ash-soil mixes
Assignee: Individual
•
Filing: 1958-02-07
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Granted: 1960-06-28
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Expires: 1978-02-07
Abstract
No abstract record available.
Inventors
- 👤 Richard L Handy
- 👤 Donald T Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:03
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/10; C04B22/00; C04B22/08; C04B22/10; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
IN THE PROCESSING OF AGGREGATE MATERIALS-CONTAINING AT LEAST 5% OF A POZZOLAN TO FORM ROAD BASES AND THE LIKE, THE STEPS CONSISTING OF ADDING TO SAID AGGREAGATE MATERIALS FROM 1 TO 10 PARTS OF LIME AND FROM .3 TO 2 PARTS OF A CARBONATE PER EACH 100 PARTS BY WEIGHT OF SAID AGGREGATE MATERIALS, SAID CARBONATE BEING SELECTED FROM THE GROUP CONSISTING OF THE SODIUM AND POTASSIUM CARBONATES, MIXING THE LIME, CARBONATE AND AGGREGATE MATERIALS TOGETHER IN THE PRESENCE OF WATER TO FORM A COMPACTABLE MIX, AND THEREAFTER COMPACTING PORTIONS OF SAID MIX.
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |