US3718003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing land-fills
Assignee: Wyeth Holdings LLC
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Filing: 1971-11-24
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Granted: 1973-02-27
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Expires: 1991-11-24
Abstract
Abstract WASTE SLIMES AND TAILINGS OBTAINED FROM THE BENEFICIATION OF VARIOUS ORES ARE UTILIZED IN THE RECLAMATION OF OTHERWISE UNLESS LAND. NOVEL PROCESSES FOR FORMULATING WASTE SLIMES AND TAILINGS INTO A RECONSTITUTED FERTILE SOIL HAVING ACCEPTABLE BEARING STRENGTH ARE DESCRIBED. AN OBJECT OF THIS INVENTION IS TO PROVIDE A CONVENIENT MEANS FOR ELIMINATING OR MINIMIZING THE LAND AND WATER POLLUTION HAZARDS NORMALLY ASSOCIATED WITH THE DISPOSAL OF THE WASTE SLIMES PRODUCED IN ORE PROCESSING PLANTS.
Inventors
- 👤 C Cook
- 👤 E Haynsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:33
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B03B9/061; B03B7/00; C; C09; C09K; C09K17/00; C09K17/02
Claims Analysis
Total Claims: 0
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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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |