US2548655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directive dielectric guide antenna
Assignee: AT&T Inc
•
Filing: 1946-04-26
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Granted: 1951-04-10
•
Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Cassius C Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:18
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01P; H01P1/00; H01P1/16; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q19/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2206923A
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US2129669A
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US2232179A
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US2283935A
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US2416698A
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US2255042A
Cited
US2405242A
Cited
US2396044A
Cited
US2415807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |