US3435148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time division multiplex pulse code modulation communication system by pulse distribution transmission
Assignee: Hitachi Ltd
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Filing: 1966-09-26
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Granted: 1969-03-25
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Hiroki Yoshine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:35
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/14
Claims Analysis
Total Claims: 0
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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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |