Patent US2548693A successfully refreshed from Google Patents.
US2548693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing explosives containing ammonium nitrate
Assignee: Imperial Chemical Industries Ltd
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Filing: 1946-07-17
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Granted: 1951-04-10
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Expires: 1966-07-17
Abstract
No abstract record available.
Inventors
- 👤 Whetstone John
- 👤 Taylor James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:10
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD FOR THE PRODUCTION OF EXPLOSIVES CONTAINING AMMONIUM NITRATE WHICH COMPRISES INCORPORATING AT LEAST A PART OF THE AMMONIUM NITRATE COMPONENT INTO THE EXPLOSIVE BY THE STEPS OF FORMING A CHEMICALLY STABLE COMPOSITION WHICH IS LIQUID AT ORDINARY ROOM TEMPERATURE AND WHICH COMPRISES AMMONIUM NITRATE, UREA, AND AT LEAST ONE NON-VOLATILE COMPOUND SELECTED FROM THE COMPATIBLE MEMBERS OF A FREEZING POINT DEPRESSANT GROUP CONSISTING OF AMMONIUM SULPHAMATE, AMMONIUM THIOSULPHATE, AMMONIUM FORMATE, AMMONIUM ACETATE, AMMONIUM THIOCYANATE, AMMONIUM HYPOPHOSPHITE, ACETAMIDE, PROPIONAMIDE, AND METHYLAMINE NITRATE, SAID CHEMICALLY STABLE COMPOSITION INCLUDING AT MOST ONLY A SMALL PROPORTION OF WATER, ADDING A HYDROPHYLIC COLLOID AGENT TO SAID CHEMICALLY STABLE COMPOSITION, AND THEREAFTER ADDING SAID GELLED COMPOSITION TO SAID EXPLOSIVE.
Claim 2
Independent Claim
115 words
A METHOD FOR THE PRODUCTION OF EXPLOSIVES CONTAINING AMMONIUM NITRATE WHICH COMPRISES INCORPORATING AT LEAST A PART OF THE AMMONIUM NITRATE COMPONENT INTO THE EXPLOSIVE BY THE STEPS OF FORMING A CHEMICALLY STABLE COMPOSITION WHICH IS LIQUID AT ORDINARY ROOM TEMPERATURE AND WHICH COMPRISES AMMONIUM NITRATE, UREA, AND AT LEAST ONE NON-VOLATILE COMPOUND SELECTED FROM THE COMPATIBLE MEMBERS OF A FREEZING POINT DEPRESSANT GROUP CONSISTING OF AMMONIUM SULPHAMATE, AMMONIUM THIOSULPHATE, AMMONIUM FORMATE, AMMONIUM ACETATE, AMMONIUM THIOCYANATE, AMMONIUM HYPOPHOSPHITE, ACETAMIDE, PROPIONAMIDE, AND METHYLAMINE NITRATE, SAID CHEMICALLY STABLE COMPOSITION INCLUDING AT MOST ONLY A SMALL PROPORTION OF WATER, ADDING A HYDROPHYLIC COLLOID AGENT TO SAID CHEMICALLY STABLE COMPOSITION, AND THEREAFTER ADDING SAID GELLED COMPOSITION TO SAID EXPLOSIVE.
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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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |