Patent US2423453A successfully refreshed from Google Patents.
US2423453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile
Assignee: Individual
•
Filing: 1942-05-13
•
Granted: 1947-07-08
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Expires: 1962-05-13
Abstract
No abstract record available.
Inventors
- 👤 James V Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:38
CPC Classifications
F; F42; F42B; F42B14/00; F42B14/06; F42B14/08; F41; F41A; F41A21/00; F41A21/16; F42B14/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US128446A
Cited
US702208A
Cited
US1127268A
Cited
US1141042A
Cited
US1166360A
Cited
US1669969A
Cited
US1944883A
Cited
US2121796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |