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US2573451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge for automatic guns
Assignee: Rheinmetall Air Defence AG
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Filing: 1947-04-26
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Granted: 1951-10-30
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Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Keller Siegfried
- 👤 Keller Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:55
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/26; F42B5/28; F42B5/285; F42B5/02; F42B5/067
Claims Analysis
Total Claims: 0
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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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |