US3558287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing microcrystalline lipophilic and hydrophilic ammonium nitrate
Assignee: Hirtenberger Patronen Zundhutchen und Metallwarenfabrik AG
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Filing: 1967-10-18
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Granted: 1971-01-26
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Expires: 1987-10-18
Abstract
Abstract A METHOD OF PRODUCING MICROSRYSTALLINE AMMONIUM NITRATE BY CRYSTALLIZING CONCENTRATED OR SATURATED SOLUTIONS OF AMMONIUM NITRATE IN THE PRESENCE OF SALTS OF PRIMARY AMINO ALKANES IN AN AMOUNT OF FROM 0.1 TO 5% BY WEIGHT, HAVING CHAIN-LENGTHS RANGING FROM C8 TO C18, AND IN THE PRESENCE OF SALTS OF AMINO ALKANOLS IN AN AMOUNT OF FROM 0.2 TO 5% BY WEIGHT, AT A TEMPERATURE BETWEEN 20* AND 90*C.
Inventors
- 👤 Marcel Vercauteren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:56
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/18; C06; C06B; C06B21/00; C06B21/0033; C06B21/0066
Claims Analysis
Total Claims: 0
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |