US2470802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave device
Assignee: RCA Corp
•
Filing: 1943-08-10
•
Granted: 1949-05-24
•
Expires: 1963-08-10
Abstract
No abstract record available.
Inventors
- 👤 Rene A Braden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:30
CPC Classifications
H; H03; H03C; H03C5/00; H03C5/02; H03D; H03D9/00; H03D9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2272165A
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US2281935A
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US2261130A
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US2245627A
Cited
US2406370A
Cited
US2190515A
Cited
US2280026A
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US2312919A
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US2293151A
Cited
US2329778A
Cited
US2409693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |