Patent US3289584A successfully refreshed from Google Patents.
US3289584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mortar ammunition
Assignee: Dynamit Nobel AG
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Filing: 1965-04-13
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Granted: 1966-12-06
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Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Stadler Hans
- 👤 Gawlick Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:44
CPC Classifications
F; F42; F42B; F42B8/00; F42B8/02; F42B8/04; F42B3/00; F42B3/04; F42B30/00; F42B30/08; F42B30/10; F42B5/00; F42B5/02; F42B5/16; F42B5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CARTRIDGE COMPRISING A SUBSTANTIALLY TUBULAR CARTRIDGE CASE; A BASE PORTION CLOSING THE REAR END OF SAID CARTRIDGE CASE; A HOLLOW PROPELLANT CHARGE WITHIN SAID CARTRIDGE CASE; SUBSTANTIALLY TUBULAR CASE MEANS DEFINING A SUBSTANTIALLY AXIAL FREE EXPANSION CHAMBER FOR THE PROPELLANT CHARGE GAS EXTENDING BETWEEN 20% TO 80% OF THE ENTIRE LENGTH OF SAID PROPELLANT CHARGE WITHIN SAID HOLLOW PROPELLANT CHARGE, SAID FREE EXPANSION CHAMBER CONSISTING ESSENTIALLY OF GASES AND BEING SUBSTANTIALLY FREE OF ANY EXPLOSIVE MATERIAL; A PROJECTILE TELESCOPICALLY ENGAGED WITH THE FORWARD END OF SAID CARTRIDGE CASE; SAID CARTRIDGE CASE AND SAID PROJECTILE HAVING INTERENGAGING MEANS FOR NORMALLY PREVENTING RELATIVE AXIAL MOVEMENT; AND SAID PROJECTILE HAVING CENTRAL RECESS MEANS OPENING
Claim 2
Dependent Claim
112 words
A CARTRIDGE COMPRISING A SUBSTANTIALLY TUBULAR CARTRIDGE CASE; A BASE PORTION CLOSING THE REAR END OF SAID CARTRIDGE CASE; A HOLLOW PROPELLANT CHARGE WITHIN SAID CARTRIDGE CASE; SUBSTANTIALLY TUBULAR CASE MEANS DEFINING A SUBSTANTIALLY AXIAL FREE EXPANSION CHAMBER FOR THE PROPELLANT CHARGE GAS EXTENDING BETWEEN 20% TO 80% OF THE ENTIRE LENGTH OF SAID PROPELLANT CHARGE WITHIN SAID HOLLOW PROPELLANT CHARGE, SAID FREE EXPANSION CHAMBER CONSISTING ESSENTIALLY OF GASES AND BEING SUBSTANTIALLY FREE OF ANY EXPLOSIVE MATERIAL; A PROJECTILE TELESCOPICALLY ENGAGED WITH THE FORWARD END OF SAID CARTRIDGE CASE; SAID CARTRIDGE CASE AND SAID PROJECTILE HAVING INTERENGAGING MEANS FOR NORMALLY PREVENTING RELATIVE AXIAL MOVEMENT; AND SAID PROJECTILE HAVING CENTRAL RECESS MEANS OPENING
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |