US2616786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ammonium nitrate in free-flowing form and method of preparing same
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-07-12
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Granted: 1952-11-04
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Expires: 1969-07-12
Abstract
No abstract record available.
Inventors
- 👤 Whetstone John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:18
CPC Classifications
A; A45; A45C; A45C13/00; A45C13/02; A45C13/03; C; C01; C01C; C01C1/00; C01C1/18; C05; C05C; C05C1/00; C05C1/02; C06; C06B; C06B21/00; C06B21/0033; C06B21/0066; C06B23/00; C06B23/002; C06B45/00; F; F42; F42B; F42B5/00; F42B5/02; F42B5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
MODIFIED AMMONIUM NITRATE CONSISTING OF A MIXTURE OF 100 PARTS AMMONIUM NITRATE AND FROM .001 TO 1.0 PART OF A SOLUBLE SALT OF A POLY-SULPHONATED DERIVATIVE OF A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF DIAMINO AND TRIAMINO SUBSTITUTED TRIARYL METHANE DYESTUFFS AND LOWER N-ALKYL MONO TO TETRA SUBSTITUTED DERIVATIVES THEREOF, SAID POLY-SULPHONATED DERIVATIVE HAVING A SOLUBILITY OF AT LEAST 0.5% IN A SATURATED AQUEOUS AMMONIUM NITRATE SOLUTION AT 20* C., AND WHICH IN SOLUTION IN A SATURATED AQUEOSU SOLUTION OF AMMONIUM NITRATE CONDITIONS SAID SOLUTION TO PRODUCE ON CRYSTALLIZATION IN THE TEMPERATURE RANGE IN WHICH THE STABLE FORM OF AMMONIUM NITRATE IS AMMONIUM NITRATE IV CRYSTALS OF AMMONIUM NITRATE IV AS (010) PRISMS, LATHS, PLATES OR SCALES.
Claim 2
Dependent Claim
118 words
MODIFIED AMMONIUM NITRATE CONSISTING OF A MIXTURE OF 100 PARTS AMMONIUM NITRATE AND FROM .001 TO 1.0 PART OF A SOLUBLE SALT OF A POLY-SULPHONATED DERIVATIVE OF A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF DIAMINO AND TRIAMINO SUBSTITUTED TRIARYL METHANE DYESTUFFS AND LOWER N-ALKYL MONO TO TETRA SUBSTITUTED DERIVATIVES THEREOF, SAID POLY-SULPHONATED DERIVATIVE HAVING A SOLUBILITY OF AT LEAST 0.5% IN A SATURATED AQUEOUS AMMONIUM NITRATE SOLUTION AT 20* C., AND WHICH IN SOLUTION IN A SATURATED AQUEOSU SOLUTION OF AMMONIUM NITRATE CONDITIONS SAID SOLUTION TO PRODUCE ON CRYSTALLIZATION IN THE TEMPERATURE RANGE IN WHICH THE STABLE FORM OF AMMONIUM NITRATE IS AMMONIUM NITRATE IV CRYSTALS OF AMMONIUM NITRATE IV AS (010) PRISMS, LATHS, PLATES OR SCALES.
References Cited (Backward Citations)
US2383763A
Cited
US2377670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |