US2934673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image control tube
Assignee: Individual
•
Filing: 1956-08-31
•
Granted: 1960-04-26
•
Expires: 1976-08-31
Abstract
No abstract record available.
Inventors
- 👤 Jack E Macgriff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:35
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; H01J31/065
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1579626A
Cited
US2015570A
Cited
US2053268A
Cited
US2097392A
Cited
US2244260A
Cited
US2223001A
Cited
US2273433A
Cited
US2273793A
Cited
US2420846A
Cited
US2283148A
Cited
US2291476A
Cited
US2526703A
Cited
FR1010023A
Cited
US2706366A
Cited
US2658311A
Cited
US2829025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |