Patent US2809326A successfully refreshed from Google Patents.
US2809326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam deflection circuits
Assignee: Individual
•
Filing: 1954-03-30
•
Granted: 1957-10-08
•
Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Howard D Gulnac
- 👤 Leo P Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:25
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/90; H03K4/10; H03K4/26; H03K4/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |