US3561943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a soil conditioner from wood wastes materials
Assignee: CHARLES W GAY JR
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Filing: 1968-02-02
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Granted: 1971-02-09
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Expires: 1988-02-02
Abstract
Abstract FINELY DIVIDED WOOD WASTE MATERIAL SUCH AS GROUND PINE BARK OR SAWDUST OR THE LIKE, SEPARATELY OR IN ADMIXTURE, IS MIXED WITH A MICROBIAL SOURCE SUCH AS GROUND NATURAL MANURE, SEWAGE SLUDGE OR INDUSTRIAL WASTES. TO THE MIXTURE, THERE IS ALSO ADDED WATER AND THE TOTAL MIXTURE IS THEN HEATED, WITH AGITATION, IN THE PRESENCE OF A MOLECULAR OXYGEN CONTAINING GAS, SUCH AS AIR, IN AMOUNTS SUFFICIENT TO CAUSE AEROBIC DECOMPOSITION. D R A W I N G
Inventors
- 👤 Charles W Gay Jr
- 👤 Donald D Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:55
CPC Classifications
C; C05; C05F; C05F11/00; C05F17/00; C05F17/20; C05F17/90; C05F17/921; C05F17/929; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40; Y10; Y10S; Y10S71/00; Y10S71/903
Claims Analysis
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |