US2602895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrahigh-frequency antenna apparatus
Assignee: Unisys Corp
•
Filing: 1946-04-25
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Granted: 1952-07-08
•
Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 William W Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:33
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/24; G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2002181A
Cited
US2217321A
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US2231602A
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US2175252A
Cited
US2283935A
Cited
US2275646A
Cited
US2422691A
Cited
US2412159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |