US3448316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube
Assignee: Sony Corp
•
Filing: 1968-01-12
•
Granted: 1969-06-03
•
Expires: 1988-01-12
Abstract
No abstract record available.
Inventors
- 👤 Susumu Yoshida
- 👤 Akio Ohgoshi
- 👤 Senri Miyaoka
- 👤 Yoshiharu Katagiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:50
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/18; H04N9/20; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/50; H01J29/503; H01J29/51; H01J29/70; H01J29/701; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H01J31/201; H01J31/203; H01J31/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2711493A
Cited
US3011090A
Cited
US2679614A
Cited
US2690517A
Cited
US2887598A
Cited
US2862144A
Cited
US3363128A
Cited
US3325675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |