Patent US2568533A successfully refreshed from Google Patents.
US2568533A
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Electronic circuit arrangement
Assignee: RCA Corp
•
Filing: 1945-04-17
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Granted: 1951-09-18
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Expires: 1965-04-17
Abstract
No abstract record available.
Inventors
- 👤 Artzt Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1990216A
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US2050059A
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US2155210A
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US2185363A
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US2271197A
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US2269417A
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US2354930A
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US2386892A
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US2321269A
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US2444084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |