US3301722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pelleted ammonium nitrate blasting explosives
Assignee: Petroleum Tool Research Inc
•
Filing: 1965-08-03
•
Granted: 1967-01-31
•
Expires: 1985-08-03
Abstract
No abstract record available.
Inventors
- 👤 Henry H Mohaupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/32; C06B31/285
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
AN EXPLOSIVE COMPRISING: PELLETS A AND PELLETS B, SAID PELLETS A BEING A COMPACTED MIXTURE OF A COMBUSTIBLE HYDROCARBON LUBRICATING MATERIAL NITRATED ORGANIC DETONATABLE SENSITIZER HAVING LOW WATER SOLUBILITY, AND AMMONIUM NITRATE, IN THE PROPORTIONS BY WEIGHT OF THE MIXTURE OF AMMONIUM NITRATE, ABOUT 38% TO 73%; AND SAID DETONATABLE SENSITIZER, ABOUT 25% TO 60%; AND COMBUSTIBLE HYDROCARBON LUBRICATING MATERIAL, ABOUT 1% TO 3.5%; AND PELLETS B COMPRISING A COMPACTED MIXTURE OF WATER SOLUBLE NITRATES COMPRISING PREDOMINANT AMMONIUM NITRATE; SAID PELLETS A AND B EACH HAVING A DRY SPECIFIC GRAVITY OF AT LEAST 1.4; AND SAID PELLETS B BEING PRESENT IN THE EXPLOSIVE IN A RATIO OF PELLETS B TO PELLETSA A SUFFICIENT TO SUBSTANTIALLY FILL ANY SPACES BETWEEN PELLETS A, NOT ALREADY FILLED WITH SAID WATER WSOLUBLE NITRATES, WITH SAID WATER SOLUBLE NITRATES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |