US2473981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated radio antenna
Assignee: Individual
•
Filing: 1946-01-21
•
Granted: 1949-06-21
•
Expires: 1966-01-21
Abstract
No abstract record available.
Inventors
- 👤 Francis G Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2344370A
Cited
US1933959A
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US2009671A
Cited
US2252395A
Cited
GB515892A
Cited
US2260253A
Cited
US2198443A
Cited
US2245701A
Cited
US2285588A
Cited
US2420772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |