US2584213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifying system
Assignee: RCA Corp
•
Filing: 1950-05-01
•
Granted: 1952-02-05
•
Expires: 1970-05-01
Abstract
No abstract record available.
Inventors
- 👤 Longo John
- 👤 Simeon I Tourshou
- 👤 Robert J Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:14
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26; H03K4/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284378A
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US2414546A
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US2436447A
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US2445017A
Cited
US2470197A
Cited
US2474474A
Cited
US2510127A
Cited
US2490743A
Cited
US2482737A
Cited
US2482150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |