Patent US2685039A successfully refreshed from Google Patents.
US2685039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diode gating circuits
Assignee: Raytheon Co
•
Filing: 1952-03-13
•
Granted: 1954-07-27
•
Expires: 1972-03-13
Abstract
No abstract record available.
Inventors
- 👤 Alfred D Scarbrough
- 👤 Elwood E Bolles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/74
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2557729A
Cited
US2517404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |