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Patent US2939449A successfully refreshed from Google Patents.
US2939449A
Expired / Lapsed
US
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Launching device and rocket propelled missile therefor
Assignee: Individual
•
Filing: 1955-06-16
•
Granted: 1960-06-07
•
Expires: 1975-06-16
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Kortick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:12
CPC Classifications
F; F41; F41C; F41C27/00; F41C27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US184717A
Cited
US2681619A
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US1270293A
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US1274882A
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US2131048A
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US2308798A
Cited
US2579323A
Cited
US2563969A
Cited
US2763256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |