Patent US3087428A successfully refreshed from Google Patents.
US3087428A
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US
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Explosive propelling device
Assignee: Olin Corp
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Filing: 1961-06-30
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Granted: 1963-04-30
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry E Frech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:27
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08; B25C1/10; B25C1/16; B25C1/163; F; F41; F41A; F41A19/00; F41A19/06; F41A19/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROPELLANT CARTRIDGE COMPRISING A RIM-FIRE CASE HAVING A LONGITUDINALLY EXTENDING TUBULAR WALL, A CLOSED END INTEGRAL WITH THE CASE WALL, A CHARGE OF PROPELLANT AND A CHARGE OF PRIMING COMPOSITION IN SAID CASE, A BASE OPPOSITE SAID END WITH A RIM ADJACENT SAID BASE, SAID RIM HAVING SPACED TRANSVERSE WALLS EXTENDING OUTWARDLY AS AN INTEGRAL FOLDED ENLARGEMENT OF SAID CASE DEFINING AN ANNULAR SPACE CONTAINING SAID COMPOSITION, CARRYING A RING OF SAID PRIMER COMPOSITION AT SAID SPACE, AND A CLOSURE OF FRANGIBLE COMPOSITION SEATED IN SAID RIM TO CLOSE SAID CASE UPON SAID CHARGE AND PRIMER AND TO DISINTEGRATE UPON FIRING.
Claim 2
Dependent Claim
102 words
A PROPELLANT CARTRIDGE COMPRISING A RIM-FIRE CASE HAVING A LONGITUDINALLY EXTENDING TUBULAR WALL, A CLOSED END INTEGRAL WITH THE CASE WALL, A CHARGE OF PROPELLANT AND A CHARGE OF PRIMING COMPOSITION IN SAID CASE, A BASE OPPOSITE SAID END WITH A RIM ADJACENT SAID BASE, SAID RIM HAVING SPACED TRANSVERSE WALLS EXTENDING OUTWARDLY AS AN INTEGRAL FOLDED ENLARGEMENT OF SAID CASE DEFINING AN ANNULAR SPACE CONTAINING SAID COMPOSITION, CARRYING A RING OF SAID PRIMER COMPOSITION AT SAID SPACE, AND A CLOSURE OF FRANGIBLE COMPOSITION SEATED IN SAID RIM TO CLOSE SAID CASE UPON SAID CHARGE AND PRIMER AND TO DISINTEGRATE UPON FIRING.
References Cited (Backward Citations)
US2632391A
Cited
US2522208A
Cited
US3011404A
Cited
US2931039A
Cited
FR68989E
Cited
US3046890A
Cited
US3058420A
Cited
US3044360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |