Patent US2658992A successfully refreshed from Google Patents.
US2658992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single side band jamming system
Assignee: Individual
•
Filing: 1945-12-10
•
Granted: 1953-11-10
•
Expires: 1965-12-10
Abstract
No abstract record available.
Inventors
- 👤 John F Byrne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:42
CPC Classifications
H; H04; H04K; H04K3/00; H04K3/40; H04K3/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1820898A
Cited
US1994048A
Cited
GB369934A
Cited
US2167722A
Cited
US2246184A
Cited
US2272068A
Cited
US2207620A
Cited
US2416307A
Cited
US2418119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |