US3327630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vented shaped charge case
Assignee: Schlumberger Technology Corp
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Filing: 1966-03-08
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Granted: 1967-06-27
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Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 William T Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:00
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/08; E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
SHAPED CHARGE APPARATUS COMPRISING: A HOLLOW CASE HAVING AT LEAST A PORTION OF A GAS-PERVIOUS MATERIAL; SHAPED CHARGE MEANS IN SAID CASE; MEANS SEALINGLY ENCLOSING SAID SHAPED CHARGE MEANS WITHIN SAID CASE; AND VENTING MEANS FOR RELEASING ACCUMULATED GASES FROM WITHIN THE ENCLOSED INTERIOR OF SAID CASE WHENEVER THE PRESSURE EXTERIOR OF SAID CASE IS LOWER THAN THAT IN SAID ENCLOSED INTERIOR.
Claim 2
Dependent Claim
62 words
SHAPED CHARGE APPARATUS COMPRISING: A HOLLOW CASE HAVING AT LEAST A PORTION OF A GAS-PERVIOUS MATERIAL; SHAPED CHARGE MEANS IN SAID CASE; MEANS SEALINGLY ENCLOSING SAID SHAPED CHARGE MEANS WITHIN SAID CASE; AND VENTING MEANS FOR RELEASING ACCUMULATED GASES FROM WITHIN THE ENCLOSED INTERIOR OF SAID CASE WHENEVER THE PRESSURE EXTERIOR OF SAID CASE IS LOWER THAN THAT IN SAID ENCLOSED INTERIOR.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |