US3018165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus-nitrogen compounds
Assignee: MOUSANTO CHEMICAL Co
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Filing: 1959-12-02
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Granted: 1962-01-23
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Expires: 1979-12-02
Abstract
No abstract record available.
Inventors
- 👤 Morris L Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/36; C11D3/364; C01; C01B; C01B21/00; C01B21/082; C01B21/087; C01B21/092; C01B21/0923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
PROCESS FOR THE PREPARATION OF TETRASODIUM IMIDODIPHOSPHATE WHICH COMPRISES HEATING DISODIUM PHOSPHORAMIDATE IN THE PRESENCE OF A MOLTEN SALT SELECTED FROM THE GROUP CONSISTING OF POTASSIUM FORMATE, CESIUM FORMATE, SODIUM PHENOXIDE, POTASSIUM PHENOXIDE, AND MIXTURES THEREOF AT A TEMPERATURE IN THE RANGE OF FROM 200* C. TO 250* C. THE SAID SALT BEING PRESENT IN THE PROPORTION OF AT LEAST 10% BY WEIGHT RELATIVE TO THE WEIGHT OF THE SAID DISODIUM PHOSPHORAMIDATE, AND THEREAFTER RECOVERING A TETRASODIUM IMIDODIPHOSPHATE FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
82 words
PROCESS FOR THE PREPARATION OF TETRASODIUM IMIDODIPHOSPHATE WHICH COMPRISES HEATING DISODIUM PHOSPHORAMIDATE IN THE PRESENCE OF A MOLTEN SALT SELECTED FROM THE GROUP CONSISTING OF POTASSIUM FORMATE, CESIUM FORMATE, SODIUM PHENOXIDE, POTASSIUM PHENOXIDE, AND MIXTURES THEREOF AT A TEMPERATURE IN THE RANGE OF FROM 200* C. TO 250* C. THE SAID SALT BEING PRESENT IN THE PROPORTION OF AT LEAST 10% BY WEIGHT RELATIVE TO THE WEIGHT OF THE SAID DISODIUM PHOSPHORAMIDATE, AND THEREAFTER RECOVERING A TETRASODIUM IMIDODIPHOSPHATE FROM THE REACTION MIXTURE.
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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |