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Patent US2879447A successfully refreshed from Google Patents.
US2879447A
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Adjustable voltage supplies
Assignee: RCA Corp
•
Filing: 1954-06-18
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Granted: 1959-03-24
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph O Preisig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:04
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712092A
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US1251377A
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US2188647A
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US2397150A
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US2474255A
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US2513225A
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US2621309A
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US2657333A
Cited
US2601153A
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US2713649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |