Patent US2884318A successfully refreshed from Google Patents.
US2884318A
Expired / Lapsed
US
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Nitrogen-phosphorus compositions
Assignee: Collier Carbon and Chemical Corp
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Filing: 1955-04-18
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Granted: 1959-04-28
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Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Curtis G Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:01
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/087; C01B21/092; C01B21/0923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE PROCESS WHICH COMPRISES CONTACTING ELEMENTAL PHOSPHOROUS WITH A GAS MIXTURE COMPRISING BETWEEN ABOUT 0.1 AND ABOUT 5 VOLUME PERCENT OF OXYGEN AND AT LEAST ABOUT 5 VOLUME PERCENT OF A ANHYDROUS AMMONIA AT A REACTION TEMPERATURE BELOW ABOUT 150* C., SAID AMOUNT OF OXYGEN BEING LESS THAN THAT SUFFICENT TO OXIDIZE SAID ELEMENTAL PHOSPHOROUS TO PHOSPHOROUS PENTOXIDE, WHEREBY THERE IS FORMED A SUBSTANTIALY NON-HYGROSOPIC SOLID PRODUCT CONTAINING ABOUT 19 PERCENT BY WEIGHT OF NITROGEN AND ABOUT 30 PERCENT BY WEIGHT OF PHOSPHORUS.
Claim 2
Dependent Claim
83 words
THE PROCESS WHICH COMPRISES CONTACTING ELEMENTAL PHOSPHOROUS WITH A GAS MIXTURE COMPRISING BETWEEN ABOUT 0.1 AND ABOUT 5 VOLUME PERCENT OF OXYGEN AND AT LEAST ABOUT 5 VOLUME PERCENT OF A ANHYDROUS AMMONIA AT A REACTION TEMPERATURE BELOW ABOUT 150* C., SAID AMOUNT OF OXYGEN BEING LESS THAN THAT SUFFICENT TO OXIDIZE SAID ELEMENTAL PHOSPHOROUS TO PHOSPHOROUS PENTOXIDE, WHEREBY THERE IS FORMED A SUBSTANTIALY NON-HYGROSOPIC SOLID PRODUCT CONTAINING ABOUT 19 PERCENT BY WEIGHT OF NITROGEN AND ABOUT 30 PERCENT BY WEIGHT OF PHOSPHORUS.
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |