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US2694778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna
Assignee: Individual
•
Filing: 1953-05-29
•
Granted: 1954-11-16
•
Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Howard J Rowland
- 👤 George C Terrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:34
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/165; H01P1/17; H01Q; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q19/134; H01Q19/136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2580678A
Cited
US2519208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |