Patent US2402716A successfully refreshed from Google Patents.
US2402716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiaircraft shell
Assignee: Individual
•
Filing: 1940-10-18
•
Granted: 1946-06-25
•
Expires: 1960-10-18
Abstract
No abstract record available.
Inventors
- 👤 Cameron A Whitsett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:31
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/02; F41H11/04; F42; F42B; F42B10/00; F42B10/32; F42B10/48; F42B10/56; F42C; F42C1/00; F42C7/00; F42C7/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-06-24 | 1949-12-24 | 1950-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-24 | 1953-12-24 | 1954-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-24 | 1957-12-24 | 1958-06-25 | $7700.00 | Window Closed / Lapsed |