US2581983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line-cord antenna
Assignee: Lanteris Space LLC
•
Filing: 1947-05-01
•
Granted: 1952-01-08
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 Milton L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:12
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/44; H01Q1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2310896A
Cited
US1744091A
Cited
FR591496A
Cited
US1745096A
Cited
US1772776A
Cited
GB340389A
Cited
US1970986A
Cited
US2268812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |