US3235423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized aqueous slurry blasting agent and process
Assignee: Hercules Powder Co
•
Filing: 1964-03-24
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Granted: 1966-02-15
•
Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 John D Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:30
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
A GELLED AQUEOUS SLURRY BLASTING AGENT COMPRISING BY WEIGHT (A) FROM ABOUT 10 TO ABOUT 40% OF A SENSITIZING AGENT; (B) FROM ABOUT 10 TO ABOUT 50% OF AMMONIUM NITRATE; (C) FROM ABOUT 5 TO ABOUT 30% OF SODIUM NITRATE; (D) FROM ABOUT 0.2 TO ABOUT 5% OF GUAR GUM GELLING AGENT; (E) FROM ABOUT 2 TO ABOUT 40% OF PARTICULATE ALUMINUM; (F) FROM ABOUT 8 TO ABOUT 30% OF WATER; AND (G) FROM ABOUT 1 TO ABOUT 5% OF ETHYLENE GLYCOL AS A STABILIZER AT A PH OF FROM ABOUT 5 TO ABOUT 7 FOR THE FINAL BLASTING AGENT COMPOSITION.
References Cited (Backward Citations)
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Cited
US2930685A
Cited
US3129126A
Cited
US3113059A
Cited
US3153606A
Cited
US3160538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |