US3268016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped charge apparatus
Assignee: Schlumberger Well Surveying Corp
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Filing: 1964-06-11
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Granted: 1966-08-23
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 William T Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:56
CPC Classifications
F; F42; F42D; F42D3/00; F42B; F42B3/00; F42B3/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
SHAPED CHARGE APPARATUS COMPRISING: EXPLOSIVE MEANS IN SAID APPARATUS HAVING A FORWARD SHAPED RECESS; MEANS FOR DETONATING SAID EXPLOSIVE MEANS TO CAUSE A PERFORATING JET TO FORM ALONG A PERFORATING AXIS, AND LINER MEANS FOR SAID FORWARD RECESS INCLUDING A SOLID REARWARD APICAL PORTION RECEIVED THEREIN AND EXTENDING TRANSVERSELY ACROSS SAID PERFORATING AXIS A DISTANCE GREATER THAN THE DIMENSION OF AN ENTRY HOLE FORMED BY THE RESULTING PERFORATING JET.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |