Patent US2712062A successfully refreshed from Google Patents.
US2712062A
Expired / Lapsed
US
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Converter circuits
Assignee: RCA Corp
•
Filing: 1949-04-12
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Granted: 1955-06-28
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Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 Walter J Frantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:51
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/06; H03D9/0608; H03D9/0625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1342885A
Cited
US2057170A
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US2260844A
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US2410387A
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GB620271A
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US2582726A
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US2469222A
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US2561417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |