US2597313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna
Assignee: United States, WAR, Secretary of
•
Filing: 1945-06-07
•
Granted: 1952-05-20
•
Expires: 1965-06-07
Abstract
No abstract record available.
Inventors
- 👤 John H Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:39
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1771148A
Cited
US1625946A
Cited
US1735377A
Cited
DE678010C
Cited
US2241119A
Cited
US2287533A
Cited
US2402622A
Cited
US2454805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |