US3352966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television telephone system utilizing one telephone line
Assignee: Toshiba Corp
•
Filing: 1964-04-27
•
Granted: 1967-11-14
•
Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Sawazaki Norikazu
- 👤 Honma Tsutomu
- 👤 Yagi Motoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:32
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/14; H04N7/141
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2537173A
Cited
US2881251A
Cited
US2903517A
Cited
US2922843A
Cited
US2909600A
Cited
US2974281A
Cited
US3213200A
Cited
US3263027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |