US2863147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio antenna
Assignee: Individual
•
Filing: 1955-05-17
•
Granted: 1958-12-02
•
Expires: 1975-05-17
Abstract
No abstract record available.
Inventors
- 👤 Charles E Berlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:59
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/32; H01Q1/325; H01Q1/3291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1792964A
Cited
US1875358A
Cited
AU923327A
Cited
US2055830A
Cited
GB430548A
Cited
US2383286A
Cited
FR1008359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |