Patent US3895637A successfully refreshed from Google Patents.
US2608656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave antenna
Assignee: RCA Corp
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Filing: 1950-02-17
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Granted: 1952-08-26
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Expires: 1970-02-17
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel I Korman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:00
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02; H01Q15/08; H01Q19/00; H01Q19/06; H01Q19/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |