Patent US3676236A successfully refreshed from Google Patents.
US3676236A
Expired / Lapsed
US
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Method of forming in place a gelled suspension explosive
Assignee: Thermex Energy Corp
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Filing: 1970-03-23
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Granted: 1972-07-11
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Expires: 1990-03-23
Abstract
Abstract THE METHOD OF FORMING IN PLACE A STABLE, GELLED SUSPENSION EXPLOSIVE COMPOSITION AS DISCLOSED IN U.S. PAT. 3,409,486 IS IMPROVED BY REGULATING THE PH OF THE COMPOSITION TO A VALUE BETWEEN 4 AND 6 AND INJECTING INTO THE EXIT STREAM FROM THE PUMP AN AQUEOUS SOLUTION OF ZIRCONIUM SULFATE, ALUMINUM SULFATE AND CHROMIC ACID TO YIELD A TOUGHER, MORE WATER RESISTANT GEL.
Inventors
- 👤 Frank J Klima
- 👤 James D Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:19
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |