US2542797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave coupling system and apparatus
Assignee: RCA Corp
•
Filing: 1947-06-14
•
Granted: 1951-02-20
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Expires: 1967-06-14
Abstract
No abstract record available.
Inventors
- 👤 Carmen L Cuccia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/02; H01J25/34; H01J25/42; H01J25/44; H03; H03C; H03C1/00; H03C1/28; H03C1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2206668A
Cited
US2270777A
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US2381539A
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US2409222A
Cited
US2395647A
Cited
US2435601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |