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US2869998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fertilizer
Assignee: Individual
•
Filing: 1956-10-02
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Granted: 1959-01-20
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Expires: 1976-10-02
Abstract
No abstract record available.
Inventors
- 👤 Donald E Vierling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:25
CPC Classifications
C; C05; C05B; C05B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SUBSTANTIALLY COMPLETE AQUEOUS SOLUTION FOR ASSISTING PLANT GROWTH CONSISTING ESSENTIALLY OF THE ACIDS H3PO4 AND HNO3; THE BASES KOH AND NH4OH; AND THE SALTS K2HPO4, K3PO4, (NH4)2HPO4, NH4H2PO4, KNH4HPO4 KNO3, NH4NO3, KH2PO4 AND (NH4)4P4O12; SAID ACIDS, BASES AND SALTS BEING PRESENT IN AMOUNTS CORRESPONDING TO THE EQUILIBRIUM RATIO AS ESTABLISHED BY THE NITROGEN, PHOSPHOROUS PENTOXIDE AND POTASSUIM OXIDE CONTENT. WHEREBY THE RESULTANT SOLUTION CONTAINS THE IONS HPO4-K+, OH-; NO3- AND NH4+ IN EQUILIBRIUM WITH SAID ACIDS, BASES AND SALTS AT A SELECTED TEMPERATURE AND PRESSURE; THE NITROGEN (N), PHOSPHOROUS PENTOXIDE (P2O5) AND POTASSIUM OXIDE (K2O) EACH BEING PRESENT IN AMOUNTS RANGING BETWEEN APPROXIMATELY 1% AND APPROXIMATELY 30% BY WEIGHT.
Claim 2
Dependent Claim
110 words
A SUBSTANTIALLY COMPLETE AQUEOUS SOLUTION FOR ASSISTING PLANT GROWTH CONSISTING ESSENTIALLY OF THE ACIDS H3PO4 AND HNO3; THE BASES KOH AND NH4OH; AND THE SALTS K2HPO4, K3PO4, (NH4)2HPO4, NH4H2PO4, KNH4HPO4 KNO3, NH4NO3, KH2PO4 AND (NH4)4P4O12; SAID ACIDS, BASES AND SALTS BEING PRESENT IN AMOUNTS CORRESPONDING TO THE EQUILIBRIUM RATIO AS ESTABLISHED BY THE NITROGEN, PHOSPHOROUS PENTOXIDE AND POTASSUIM OXIDE CONTENT. WHEREBY THE RESULTANT SOLUTION CONTAINS THE IONS HPO4-K+, OH-; NO3- AND NH4+ IN EQUILIBRIUM WITH SAID ACIDS, BASES AND SALTS AT A SELECTED TEMPERATURE AND PRESSURE; THE NITROGEN (N), PHOSPHOROUS PENTOXIDE (P2O5) AND POTASSIUM OXIDE (K2O) EACH BEING PRESENT IN AMOUNTS RANGING BETWEEN APPROXIMATELY 1% AND APPROXIMATELY 30% BY WEIGHT.
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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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |