Patent US399540A successfully refreshed from Google Patents.
US3482248A
Expired / Lapsed
US
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Multifrequency common aperture manifold antenna
Assignee: United States Department of the Army
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Filing: 1967-07-31
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Granted: 1969-12-02
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Expires: 1987-07-31
Abstract
No abstract record available.
Inventors
- 👤 Howard S Jones Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:03
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/0006; H01Q21/0037; H01Q21/0043; H01Q21/005; H01Q13/00; H01Q13/20; H01Q13/22; H01Q13/24; H01Q5/00; H01Q5/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |