US2431902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-regulating high-frequency generator
Assignee: RCA Corp
•
Filing: 1943-12-28
•
Granted: 1947-12-02
•
Expires: 1963-12-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:19
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1578513A
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US1559776A
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DE351468C
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US2023453A
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GB439166A
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US2175694A
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US2236195A
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US2276832A
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US2305262A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |