Patent US3141928A successfully refreshed from Google Patents.
US3141928A
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Discrete address time division multiplex data transmission system
Assignee: AT&T Inc
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Filing: 1955-11-28
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Granted: 1964-07-21
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Expires: 1975-11-28
Abstract
No abstract record available.
Inventors
- 👤 James R Davey
- 👤 Mitchell Doren
- 👤 Jr Bernard Ostendorf
- 👤 Wilton T Rea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:47
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/50; H04L12/52; H04L12/525
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
IN A SYNCHRONIZED RADIO TELEGRAPH RECEIVING STATION, MEANS COMPRISING AN OSCILLATOR, SYNCHRONIZING MEANS FOR CONTROLLING SAID OSCILLATOR, AND A BINARY COUNTER, RESPONSIVE TO SAID OSCILLATOR, FOR RECEIVING A TELEGRAPH MULTI ELEMENT, TWO CONDITION, PERMUTATION SIGNAL CODE COMBINATION, AND DIODE GATE MEANS FOR COMPARING SAID RECEIVED COMBINATION WITH AN ADDRESS COMBINATION ASSIGNED TO SAID STATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |