Patent US3467880A successfully refreshed from Google Patents.
US3467880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-image electron beam tube and color camera
Assignee: AT&T Inc
•
Filing: 1967-08-21
•
Granted: 1969-09-16
•
Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Merton H Crowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:32
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J31/62; H01J31/64; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J31/26; H01J31/46; H04; H04N; H04N23/00; H04N23/10; H04N23/12; H04N7/00; H04N7/01; H04N7/0105; H04N7/0107
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) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |