Patent US2489984A successfully refreshed from Google Patents.
US2489984A
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Explosive-release mechanism
Assignee: RTX Corp
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Filing: 1945-02-20
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Granted: 1949-11-29
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Expires: 1965-02-20
Abstract
No abstract record available.
Inventors
- 👤 James M Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:55
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/006; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T403/00; Y10T403/16; Y10T403/1633; Y10T403/59; Y10T403/591; Y10T403/592; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079
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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |