US2710894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-tube cavity resonator circuit
Assignee: RCA Corp
•
Filing: 1950-01-31
•
Granted: 1955-06-14
•
Expires: 1970-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas M Gluyas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:16
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2372228A
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US2284405A
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US2415962A
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US2404261A
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US2428622A
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US2421635A
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US2412805A
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US2527979A
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US2554500A
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US2554501A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |