US2799017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slotted cylindrical antennas
Assignee: Individual
•
Filing: 1952-08-30
•
Granted: 1957-07-09
•
Expires: 1972-08-30
Abstract
No abstract record available.
Inventors
- 👤 Alford Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:25
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/10; H01Q13/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2400867A
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US2414266A
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US2474137A
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US2465245A
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US2513007A
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US2521550A
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US2556094A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |