US3744986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of horticultural soils
Assignee: Union Rheinische Braunkohlen Kraftstoff AG
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Filing: 1971-09-28
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Granted: 1973-07-10
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Expires: 1991-09-28
Abstract
Abstract PRODUCTION OF HORTICULTURAL SOILS WHICH GIVE FASTER AND STRONGER GROWTH OF FLOWERS AND VEGETABLES BY MIXING LIGNITE AND PEAT IN THE RATIO OF 0.7-1.5 TO 1 AND ADDING ORGANIC FERTILIZER COMPOUNDS.
Inventors
- 👤 Brauckmann E Grosse
- 👤 H Kick
- 👤 G Nettesheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:01
CPC Classifications
C; C05; C05F; C05F11/00; C05F11/02; C05F1/00; C05F1/005; C05F7/00; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P20/00; Y02P20/141; Y02P20/145
Claims Analysis
Total Claims: 0
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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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |