US2680067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting explosive containing a water-soluble polysaccharide ether
Assignee: Imperial Chemical Industries Ltd
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Filing: 1951-08-13
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Granted: 1954-06-01
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Expires: 1971-08-13
Abstract
No abstract record available.
Inventors
- 👤 Davidson Samuel Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:13
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/32; C06B31/56; C06B23/00; C06B23/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
SAFETY BLASTING EXPLOSIVE COMPOSITIONS COMPRISING SODIUM NITRATE, AMMONIUM CHLORIDE, AT LEAST ONE EXPLOSIVE SENSITISING AGENT, AND A WATERSWELLABLE AND WATER-SOLUBLE MACRO-MOLECULAR POLYSACCHARIDE ETHER SELECTED FROM THE GROUP CONSISTING OF A POLYSACCHARIDE ETHER OF STARCH AND A POLYSACCHARIDE ETHER OF CELLULOSE, SAID ETHER BEING HOMOGENEOUSLY DISTRIBUTED THROUGHOUT THE BLASTING COMPOSITION.
Claim 2
Dependent Claim
49 words
SAFETY BLASTING EXPLOSIVE COMPOSITIONS COMPRISING SODIUM NITRATE, AMMONIUM CHLORIDE, AT LEAST ONE EXPLOSIVE SENSITISING AGENT, AND A WATERSWELLABLE AND WATER-SOLUBLE MACRO-MOLECULAR POLYSACCHARIDE ETHER SELECTED FROM THE GROUP CONSISTING OF A POLYSACCHARIDE ETHER OF STARCH AND A POLYSACCHARIDE ETHER OF CELLULOSE, SAID ETHER BEING HOMOGENEOUSLY DISTRIBUTED THROUGHOUT THE BLASTING COMPOSITION.
References Cited (Backward Citations)
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Cited
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GB359163A
Cited
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Cited
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Cited
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Cited
FR984674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |