US3213202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time division multiplex telecommunication switching systems
Assignee: Post Office
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Filing: 1962-05-31
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Granted: 1965-10-19
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Flowers Thomas Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:53
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM COMPRISING IN COMBINATION A PLURALITY OF ROWS OF CIRCUITS, A FIRST TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAY FOR EACH ROW, LINE EQUIPMENT CONNECTING EACH CIRCUIT OF A ROW TO THE FIRST HIGHWAY OF THE ROW, A PLURALITY OF SECOND TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAYS, A FIRST GROUP OF ELECTRONICALLY-CONTROLLED CROSSPOINT SWITCHES INTERCONNECTING EACH FIRST HIGHWAY WITH SOME AT LEAST OF THE SECOND HIGHWAYS, A GROUP OF TERMINATING TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAYS, A SECOND GROUP OF ELECTRONICALLY-CONTROLLED CROSSPOINT SWITCHES INTERCONNECTING EACH SECOND HIGHWAY WITH SOME AT LEAST OF THE TERMINATIONG HIGHWAYS, A PLURALITY OF INCOMING JUNCTION LINES, LINE EQUIPMENTS CONNECTING THE INCOMING JUNCTION LINES TO SAID TERMINATING HIGHWAYS, A GROUP OF ORIGINATING TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAYS, A THIRD GROUP OF ELECTRONICALLYCONTROLLED CROSSPOINT SWITCHES INTERCONNECTING EACH SECOND HIGHWAY WITH SOME AT LEAST OF SAID ORIGINATING HIGHWAYS,
Claim 2
Dependent Claim
145 words
A TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM COMPRISING IN COMBINATION A PLURALITY OF ROWS OF CIRCUITS, A FIRST TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAY FOR EACH ROW, LINE EQUIPMENT CONNECTING EACH CIRCUIT OF A ROW TO THE FIRST HIGHWAY OF THE ROW, A PLURALITY OF SECOND TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAYS, A FIRST GROUP OF ELECTRONICALLY-CONTROLLED CROSSPOINT SWITCHES INTERCONNECTING EACH FIRST HIGHWAY WITH SOME AT LEAST OF THE SECOND HIGHWAYS, A GROUP OF TERMINATING TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAYS, A SECOND GROUP OF ELECTRONICALLY-CONTROLLED CROSSPOINT SWITCHES INTERCONNECTING EACH SECOND HIGHWAY WITH SOME AT LEAST OF THE TERMINATIONG HIGHWAYS, A PLURALITY OF INCOMING JUNCTION LINES, LINE EQUIPMENTS CONNECTING THE INCOMING JUNCTION LINES TO SAID TERMINATING HIGHWAYS, A GROUP OF ORIGINATING TIME DIVISION MULTIPLEX BOTHWAY COMMUNICATION HIGHWAYS, A THIRD GROUP OF ELECTRONICALLYCONTROLLED CROSSPOINT SWITCHES INTERCONNECTING EACH SECOND HIGHWAY WITH SOME AT LEAST OF SAID ORIGINATING HIGHWAYS,
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |