US2421752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket projectile
Assignee: Eureka Williams Co
•
Filing: 1943-02-22
•
Granted: 1947-06-10
•
Expires: 1963-02-22
Abstract
No abstract record available.
Inventors
- 👤 Hilten E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:32
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/56; F42B12/68; F42B30/00; F42B30/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US17312A
Cited
US980215A
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US1257126A
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US1417460A
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US1879840A
Cited
US2271280A
Cited
US2344957A
Cited
US2397114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-09 | 1950-12-09 | 1951-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-09 | 1954-12-09 | 1955-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-09 | 1958-12-09 | 1959-06-10 | $7700.00 | Window Closed / Lapsed |