Patent US2864501A successfully refreshed from Google Patents.
Patent US3136249A successfully refreshed from Google Patents.
US3136249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped charge explosive unit and liner therefor
Assignee: Jet Research Center Inc
•
Filing: 1961-06-12
•
Granted: 1964-06-09
•
Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Poulter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:17
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02; F42B1/032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A LINED, SHAPED EXPLOSIVE CHARGE COMPRISING: (A) A BODY OF EXPLOSIVE MATERIAL PROVIDING A CAVITY IN A FACE THEREOF; AND (B) A METAL LINER COVERING THE FACE OF SAID CAVITY, SAID METAL LINER COMPRISING A COMPOSITION CONSISTING ESSENTIALLY OF FROM 75 PERCENT TO 99.5 PERCENT COPPER AND FROM 25 PERCENT TO 0.5 PERCENT LEAD, SAID COMPOSITION HAVING A METALLOGRAPHIC STRUCTURE CONSISTING OF COPPER DENDRITES WITH THE SPACES BETWEEN SAID DENDRITES FILLED WITH LEAD, SAID LINEAR BEING ADAPTED TO BREAK UP SUBSTANTIALLY COMPLETELY INTO SMALL PARTICLES WHEN SAID EXPLOSIVE MATERIAL IS FIRED.
Claim 2
Dependent Claim
91 words
A LINED, SHAPED EXPLOSIVE CHARGE COMPRISING: (A) A BODY OF EXPLOSIVE MATERIAL PROVIDING A CAVITY IN A FACE THEREOF; AND (B) A METAL LINER COVERING THE FACE OF SAID CAVITY, SAID METAL LINER COMPRISING A COMPOSITION CONSISTING ESSENTIALLY OF FROM 75 PERCENT TO 99.5 PERCENT COPPER AND FROM 25 PERCENT TO 0.5 PERCENT LEAD, SAID COMPOSITION HAVING A METALLOGRAPHIC STRUCTURE CONSISTING OF COPPER DENDRITES WITH THE SPACES BETWEEN SAID DENDRITES FILLED WITH LEAD, SAID LINEAR BEING ADAPTED TO BREAK UP SUBSTANTIALLY COMPLETELY INTO SMALL PARTICLES WHEN SAID EXPLOSIVE MATERIAL IS FIRED.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |