Patent US2925320A successfully refreshed from Google Patents.
US2925320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounds of the class p2x5no and process for producing same
Assignee: Pennwalt Corp
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Filing: 1956-02-16
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Granted: 1960-02-16
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Expires: 1976-02-16
Abstract
No abstract record available.
Inventors
- 👤 Kahler Ernest Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:16
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/097
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A COMPOUND OF THE FORMULA: P2X5NO, WHEREIN X IS A HALOGEN.
Claim 2
Dependent Claim
11 words
A COMPOUND OF THE FORMULA: P2X5NO, WHEREIN X IS A HALOGEN.
Claim 3
Dependent Claim
89 words
A PROCESS FOR THE PRODUCTION OF P2X5NO, WHEREIN X IS A HALOGEN, COMPRISING CONTACTING PHOSPHORUS PENTAHALIDE IN A MOLAR RATIO RANGING FROM ABOUT 1:0.5 TO 1:2 WITH A COMPOUND SUPPLYING NITROGEN AND OXYGEN ATOMS SELECTED FROM THE GROUP CONSISTING OF HYDROXYLAMINE, HYDROXYLAMINE HYDROGEN HALIDE AND HYDROXYLAMINE HYDROSULFATE AT A TEMPERATURE ABOVE ROOM TEMPERATURE AT WHICH LIBERATION OF HALOGEN OCCURS, COOLING THE REACTION MIXTURE AT THE POINT AT WHICH THE LIBERATION OF HALOGEN GAS CEASES, TO OBTAIN A REACTION MIXTURE CONTAINING P2X5NO, AND SEPARATING THE P2X5NO FROM SAID REACTION MIXTURE.
Claim 4
Dependent Claim
89 words
A PROCESS FOR THE PRODUCTION OF P2X5NO, WHEREIN X IS A HALOGEN, COMPRISING CONTACTING PHOSPHORUS PENTAHALIDE IN A MOLAR RATIO RANGING FROM ABOUT 1:0.5 TO 1:2 WITH A COMPOUND SUPPLYING NITROGEN AND OXYGEN ATOMS SELECTED FROM THE GROUP CONSISTING OF HYDROXYLAMINE, HYDROXYLAMINE HYDROGEN HALIDE AND HYDROXYLAMINE HYDROSULFATE AT A TEMPERATURE ABOVE ROOM TEMPERATURE AT WHICH LIBERATION OF HALOGEN OCCURS, COOLING THE REACTION MIXTURE AT THE POINT AT WHICH THE LIBERATION OF HALOGEN GAS CEASES, TO OBTAIN A REACTION MIXTURE CONTAINING P2X5NO, AND SEPARATING THE P2X5NO FROM SAID REACTION MIXTURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |