US2483575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directional microwave antenna
Assignee: AT&T Inc
•
Filing: 1944-07-26
•
Granted: 1949-10-04
•
Expires: 1964-07-26
Abstract
No abstract record available.
Inventors
- 👤 Cassius C Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:19
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q19/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB402834A
Cited
US2206923A
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US2232559A
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US2283935A
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US2342721A
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US2370053A
Cited
US2409183A
Cited
US2434253A
Cited
US2422184A
Cited
US2441574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |