US2896029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor amplifier circuits
Assignee: RCA Corp
•
Filing: 1955-05-03
•
Granted: 1959-07-21
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Expires: 1975-05-03
Abstract
No abstract record available.
Inventors
- 👤 Lin Hung Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:40
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/30; H03F3/3083; H03F3/3086; H03F3/3091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2431973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |