US3438038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonreciprocal omnidirectional rapid scan antenna system
Assignee: United States Department of the Navy
•
Filing: 1966-08-17
•
Granted: 1969-04-08
•
Expires: 1986-08-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Marston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:06
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/24; H01Q3/242
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3230536A
Cited
US3392394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |