US3476878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-division synchronous system for a plurality of synchronous telegraph circuits
Assignee: KDDI Corp
•
Filing: 1967-03-07
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Granted: 1969-11-04
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Expires: 1987-03-07
Abstract
No abstract record available.
Inventors
- 👤 Shintaro Oshima
- 👤 Yukio Nakagome
- 👤 Yasuo Fukata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:45
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/06; H; H04; H04L; H04L5/00; H04L5/22; H04L5/24; H04L5/245; H04L7/00; H04L7/02; H04L7/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2575268A
Cited
US2716158A
Cited
US2682574A
Cited
US2845489A
Cited
US2973511A
Cited
US3156757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |