US2474384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency radiant energy absorbing device
Assignee: Lanteris Space LLC
•
Filing: 1944-04-28
•
Granted: 1949-06-28
•
Expires: 1964-04-28
Abstract
No abstract record available.
Inventors
- 👤 David E Sunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
H; H01; H01Q; H01Q17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1923916A
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US2054896A
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US2094602A
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US2151118A
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US2245669A
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US2210415A
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US2273547A
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US2307012A
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US2293839A
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US2293181A
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US2398606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |