US3027267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for drying granular coated ammonium nitrate
Assignee: Phillips Petroleum Co
•
Filing: 1957-10-03
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Granted: 1962-03-27
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Expires: 1977-10-03
Abstract
No abstract record available.
Inventors
- 👤 Carl E Alleman
- 👤 Frederick A Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:11
CPC Classifications
C; C05; C05C; C05C1/00; C05C1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF PREPARING GRANULAR AMMONIUM NITRATE OF REDUCED TENDENCY TO CAKE UPON STORAGE IN A CONFFINED SPACE WHICH COMPRISES PARTIALLY DRYING GRANULAR AMMONIUM NITRATE COATING THE GRANULAR AMMONIUM NITRATE SO DIRED WITH A FINELY DIVIDED INERT SOLID MATERIAL AS A PARTING AGENT, THEN STORING SAID GRANULAR AMMONIUM NITRATE IN OPEN COMMUNICATION WITH THE ATMOSPHERE FOR AN AGING PERIOD OF AT LEAST 2.5 DAYS UNDER CONDITIONS OF RELATIVE HUMIDITY AND TEMPERATURE SUCH THAT SAID AMMONIUM NITRATE IS DRIED TO A MOISTURE CONTENT OF LESS THAN ABOUT 0.25 WEIGHT PERCENT.
Claim 2
Independent Claim
89 words
THE METHOD OF PREPARING GRANULAR AMMONIUM NITRATE OF REDUCED TENDENCY TO CAKE UPON STORAGE IN A CONFFINED SPACE WHICH COMPRISES PARTIALLY DRYING GRANULAR AMMONIUM NITRATE COATING THE GRANULAR AMMONIUM NITRATE SO DIRED WITH A FINELY DIVIDED INERT SOLID MATERIAL AS A PARTING AGENT, THEN STORING SAID GRANULAR AMMONIUM NITRATE IN OPEN COMMUNICATION WITH THE ATMOSPHERE FOR AN AGING PERIOD OF AT LEAST 2.5 DAYS UNDER CONDITIONS OF RELATIVE HUMIDITY AND TEMPERATURE SUCH THAT SAID AMMONIUM NITRATE IS DRIED TO A MOISTURE CONTENT OF LESS THAN ABOUT 0.25 WEIGHT PERCENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |