US2525466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for converting a variable direct-current potential to an alternating current of controlled phase and amplitude
Assignee: RCA Corp
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Filing: 1946-12-31
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Granted: 1950-10-10
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Expires: 1966-12-31
Abstract
No abstract record available.
Inventors
- 👤 Wald Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:00
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |