US2656485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory tube control device
Assignee: Individual
•
Filing: 1951-10-08
•
Granted: 1953-10-20
•
Expires: 1971-10-08
Abstract
No abstract record available.
Inventors
- 👤 Chester H Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:25
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24; G; G11; G11C; G11C11/00; G11C11/21; G11C11/23; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2374666A
Cited
US2381901A
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US2445215A
Cited
US2524296A
Cited
US2524295A
Cited
US2459131A
Cited
US2576040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |