US2869996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fertilizer
Assignee: Individual
•
Filing: 1956-10-02
•
Granted: 1959-01-20
•
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 02:28
CPC Classifications
C; C05; C05B; C05B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SUBSTANTIALLY COMPLETE AQUEOUS SOLUTION FOR ASSISTING PLANT GROWTH CONSISTING ESSENTIALLY OF THE ACID H3PO4; THE BASES KOH AND NH4OH; THE SALTS K2HPO4, K3PO4 (NH4)2HPO4, NH4H2PO4, KH2PO4, (NH4)4P4O12 AND KNH4HPO4; AND THE ORGANIC CHEMICAL CO(NH2)2; SAID ACID, BASES, SALTS AND ORGANIC CHEMICAL BEING PRESENT IN AMOUNTS CORRESPONDING TO THE EQUILIBRIUM RATIO AS ESTABLISHED BY THE NITROGEN, PHOSPHORUS PENTOXIDE AND POTASSIUM OXIDE CONTENT, WHEREBY THE RESULTANT SOLUTION CONTAINS THE IONS H+, PO4-, K+, OH- AND NH4+ IN EQUILIBRIUM WITH SAID ACID, BASES SALTS AND ORGANIC CHEMICAL 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 45% BY WEIGHT.
Claim 2
Dependent Claim
115 words
A SUBSTANTIALLY COMPLETE AQUEOUS SOLUTION FOR ASSISTING PLANT GROWTH CONSISTING ESSENTIALLY OF THE ACID H3PO4; THE BASES KOH AND NH4OH; THE SALTS K2HPO4, K3PO4 (NH4)2HPO4, NH4H2PO4, KH2PO4, (NH4)4P4O12 AND KNH4HPO4; AND THE ORGANIC CHEMICAL CO(NH2)2; SAID ACID, BASES, SALTS AND ORGANIC CHEMICAL BEING PRESENT IN AMOUNTS CORRESPONDING TO THE EQUILIBRIUM RATIO AS ESTABLISHED BY THE NITROGEN, PHOSPHORUS PENTOXIDE AND POTASSIUM OXIDE CONTENT, WHEREBY THE RESULTANT SOLUTION CONTAINS THE IONS H+, PO4-, K+, OH- AND NH4+ IN EQUILIBRIUM WITH SAID ACID, BASES SALTS AND ORGANIC CHEMICAL 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 45% BY WEIGHT.
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) | 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 |