Patent US2774007A successfully refreshed from Google Patents.
US2774007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam cut-off circuit
Assignee: TDK Micronas GmbH
•
Filing: 1952-06-27
•
Granted: 1956-12-11
•
Expires: 1972-06-27
Abstract
No abstract record available.
Inventors
- 👤 John F Bigelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:17
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2210702A
Cited
US2097272A
Cited
US2152821A
Cited
US2153216A
Cited
US2158261A
Cited
US2119372A
Cited
US2280670A
Cited
US2369631A
Cited
US2532566A
Cited
US2536712A
Cited
US2506723A
Cited
US2584932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |