US2997378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compacted ammonium nitrate
Assignee: Zeneca Inc
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Filing: 1959-05-14
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Granted: 1961-08-22
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Expires: 1979-05-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred W Cox
- 👤 John J Roemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:33
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE PROCESS OF PRODUCING A FIRM, POROUS, PARTICULATE AMMONIUM NITRATE MATERIAL WHICH COMPRISES MECHANICALLY COMPACTING A PARTICULATE AMMONIUM NITRATE STARTING MATERIAL HAVING A DENSITY GREATER THAN 1.60 INTO A THIN, AGGLOMERATED, SELF-SUPPORTING SHEET, AND GRINDING SAID SHEET TO OBTAIN A PRODUCT HAVING A LIGHT GRADE PETROLEUM DISTILLATE ABSORPTIVE CAPACITY OF BETWEEN ABOUT 5% AND ABOUT 8% BY WEIGHT AND A PARTICLE DENSITY OF BETWEEN ABOUT 1.40 AND ABOUT 1.60.
Claim 2
Dependent Claim
52 words
AN AMMONIUM NITRATE EXPLOSIVE COMPOSITION CONSISTING ESSENTIALLY OF THE PRODUCT OF CLAIM 8 AND A LIGHT GRADE OF PETROLEUM DISTILLATE ABSORBED ON THE SURFACE OF THE COMPACTED AND GROUND PRODUCT, THE AMOUNT OF LIGHT GRADE PETROLEUM DISTILLATE ABSORBED ON THE AMMONIUM NITRATE PRODUCT BEING BETWEEN ABOUT 5 AND ABOUT 8% BY WEIGHT.
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |