US2486776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-biased electric translating device
Assignee: AT&T Inc
•
Filing: 1948-04-21
•
Granted: 1949-11-01
•
Expires: 1968-04-21
Abstract
No abstract record available.
Inventors
- 👤 Harold L Barney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:30
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/12; H03C; H03C1/00; H03C1/36; H03F; H03F3/00; H03F3/04; H03F3/38; H03F3/387
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) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |