US3034858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of non-caking fertilizers
Assignee: Phillips Petroleum Co
•
Filing: 1958-01-27
•
Granted: 1962-05-15
•
Expires: 1978-01-27
Abstract
No abstract record available.
Inventors
- 👤 Van C Vives
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:43
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/30; C; C05; C05C; C05C1/00; C05G; C05G3/00; C05G3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD FOR IMPROVING THE STORAGE STABILITY OF GRANULAR AMMONIUM NITRATE, WHICH COMPRISES COATING SAID GRANULAR AMMONIUM NITRATE WITH AN AGENT COMPRISING ABOUT 0.1 TO 2 WEIGHT PERCENT OF AN ALKYL ARYL AND ABOUT 0.01 TO 0.2 WEIGHT PERCENT OF AN ALKYL ARYL SULFONATE HAVING 8 TO 30 CARBON ATOMS PER MOLECULE, SAID WEIGHT PERCENTS BASED ON SAID AMMONIUM NITRATE.
Claim 2
Independent Claim
60 words
A METHOD FOR IMPROVING THE STORAGE STABILITY OF GRANULAR AMMONIUM NITRATE, WHICH COMPRISES COATING SAID GRANULAR AMMONIUM NITRATE WITH AN AGENT COMPRISING ABOUT 0.1 TO 2 WEIGHT PERCENT OF AN ALKYL ARYL AND ABOUT 0.01 TO 0.2 WEIGHT PERCENT OF AN ALKYL ARYL SULFONATE HAVING 8 TO 30 CARBON ATOMS PER MOLECULE, SAID WEIGHT PERCENTS BASED ON SAID AMMONIUM NITRATE.
References Cited (Backward Citations)
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Cited
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Cited
US2284002A
Cited
US2399987A
Cited
US2614917A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |