Patent US3348485A successfully refreshed from Google Patents.
US3348485A
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Armor piercing shell
Assignee: Brevets Aero Mecaniques SA
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Filing: 1965-10-05
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Granted: 1967-10-24
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Expires: 1985-10-05
Abstract
No abstract record available.
Inventors
- 👤 Dufour Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:16
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/04; F42B12/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN ARMOR PIERCING SHELL WHICH COMPRISES, IN COMBINATION, A CORE OF A HARD MATERIAL AND, ABOUT SAID CORE, AN ENVELOPE OF A LIGHT MATERIAL OF A DIAMETER GREATER THAN THAT OF SAID CORE, WHEREIN THE FRONT PART OF SAID CORE IS IN THE FORM OF A CUP THE EDGE OF WHICH CONSTITUTES THE MOST FORWARDLY PROJECTING PORTION OF SAID CORE AND WHEREIN THE ANGLE MADE, IN A RADIAL PLANE OF THE SHELL, BETWEEN THE TANGENT AT SAID EDGE TO AN AXIAL SECTION OF THE OUTER SURFACE OF SAID CORE AND A PARALLEL TO THE SHELL AXIS RANGES FROM 25* TO 35* AND THE ANGLE MADE, ALSO IN SAID RADIAL PLANE, BETWEEN SAID TANGENT AND THE TANGENT TO SAID CUP AT SAID EDGE IS SUBSTANTIALLY EQUAL TO 90*.
Claim 2
Dependent Claim
127 words
AN ARMOR PIERCING SHELL WHICH COMPRISES, IN COMBINATION, A CORE OF A HARD MATERIAL AND, ABOUT SAID CORE, AN ENVELOPE OF A LIGHT MATERIAL OF A DIAMETER GREATER THAN THAT OF SAID CORE, WHEREIN THE FRONT PART OF SAID CORE IS IN THE FORM OF A CUP THE EDGE OF WHICH CONSTITUTES THE MOST FORWARDLY PROJECTING PORTION OF SAID CORE AND WHEREIN THE ANGLE MADE, IN A RADIAL PLANE OF THE SHELL, BETWEEN THE TANGENT AT SAID EDGE TO AN AXIAL SECTION OF THE OUTER SURFACE OF SAID CORE AND A PARALLEL TO THE SHELL AXIS RANGES FROM 25* TO 35* AND THE ANGLE MADE, ALSO IN SAID RADIAL PLANE, BETWEEN SAID TANGENT AND THE TANGENT TO SAID CUP AT SAID EDGE IS SUBSTANTIALLY EQUAL TO 90*.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |