Patent US2667122A successfully refreshed from Google Patents.
US2667122A
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Oil well torpedo
Assignee: EIDP Inc
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Filing: 1949-05-21
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Granted: 1954-01-26
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Expires: 1969-05-21
Abstract
No abstract record available.
Inventors
- 👤 Burrows Lawton Arthur
- 👤 Cook Melvin Alonzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:32
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/10; C06B25/12; C06B25/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN OIL WELL TORPEDO OF REDUCED SENSITIVITY. COMPRISING A CONTAINER ADAPTED TO HOLD A LIQUID EXPLOSIVE CHARGE, MEANS ASSOCIATED WITH SAID CONTAINER FOR LOWERING THE SAME INTO THE OIL WELL, MEANS ON SAID CONTAINER FOR ATTACHING ANOTHER CONTAINER BELOW THE FIRST CONTAINER IN THE WELL, AND IN SAID FIRST CONTAINER, A LIQUID EXPLOSIVE CHARGE COMPRISING FROM 50 TO 80% BY WEIGHT OF NITROGLYCERIN AND DISSOLVED THEREIN A BLEND OF DINITROTOLUENE AND TRINITROTOLUENE IN A RATIO BETWEEN 1 TO 1 AND 4 TO 1.
Claim 2
Dependent Claim
83 words
AN OIL WELL TORPEDO OF REDUCED SENSITIVITY. COMPRISING A CONTAINER ADAPTED TO HOLD A LIQUID EXPLOSIVE CHARGE, MEANS ASSOCIATED WITH SAID CONTAINER FOR LOWERING THE SAME INTO THE OIL WELL, MEANS ON SAID CONTAINER FOR ATTACHING ANOTHER CONTAINER BELOW THE FIRST CONTAINER IN THE WELL, AND IN SAID FIRST CONTAINER, A LIQUID EXPLOSIVE CHARGE COMPRISING FROM 50 TO 80% BY WEIGHT OF NITROGLYCERIN AND DISSOLVED THEREIN A BLEND OF DINITROTOLUENE AND TRINITROTOLUENE IN A RATIO BETWEEN 1 TO 1 AND 4 TO 1.
References Cited (Backward Citations)
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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) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |