Patent US2294100A successfully refreshed from Google Patents.
US2294100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic oscillator frequency control system
Assignee: RCA Corp
•
Filing: 1935-02-04
•
Granted: 1942-08-25
•
Expires: 1955-02-04
Abstract
No abstract record available.
Inventors
- 👤 Travis Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B3/16; H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/042; D06B2700/00; D06B2700/09; D06B2700/095
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) | 1945-08-24 | 1946-02-23 | 1946-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-24 | 1950-02-23 | 1950-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-24 | 1954-02-23 | 1954-08-25 | $7700.00 | Window Closed / Lapsed |