Patent US2316474A successfully refreshed from Google Patents.
US2316474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier control circuits
Assignee: RCA Corp
•
Filing: 1940-05-03
•
Granted: 1943-04-13
•
Expires: 1960-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jacob Van Slooten
- 👤 Schenau Bernardus W Van Ingen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:46
CPC Classifications
H; H03; H03G; H03G9/00; H03G9/26; H03G9/28; H03F; H03F3/00; H03F3/34; H03F3/36; H03G3/00; H03G3/20; H03G3/22; H03G5/00; H03G5/16; H03G5/18; H03G5/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-04-12 | 1946-10-12 | 1947-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-12 | 1950-10-12 | 1951-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-12 | 1954-10-12 | 1955-04-13 | $7700.00 | Window Closed / Lapsed |