US3319005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conference circuit for time division telephone system utilizing multiple storage cells
Assignee: AT&T Inc
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Filing: 1963-12-30
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Granted: 1967-05-09
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Wilmer B Gaunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/56; H04M3/561; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A TIME DIVISION SWITCHING SYSTEM HAVING A PLURALITY OF LINE CIRCUITS SELECTIVELY CONNECTABLE RESPECTIVE TIME SLOTS TO A TALKING BUS, A CONFERENCE CIRCUIT COMPRISING A FIRST STORAGE CELL, A FIRST SWITCH FOR CONNECTING SAID FIRST STORAGE CELL TO SAID TALKING BUS IN ALL TIME SLOTS ASSIGNED TO PARTIES IN A CONFERENCE FOR EFFECTING RESONANT TRANSFERS OF ENERGY BETWEEN SAID FIRST STORAGE CELL AND SAID LINE CIRCUITS, A SECOND STORAGE CELL, AND A SECOND SWITCH CONNECTED BETWEEN SAID FIRST AND SECOND STORAGE CELLS AND OPERATIVE AFTER THE OPERATION OF SAID FIRST SWITCH FOR EFFECTING A RESONANT TRANSFER OF A PORTION OF THE ENERGY IN SAID FIRST STORAGE CELL AND ALL OF THE ENERGY IN SAID SECOND STORAGE CELL.
Claim 2
Dependent Claim
118 words
IN A TIME DIVISION SWITCHING SYSTEM HAVING A PLURALITY OF LINE CIRCUITS SELECTIVELY CONNECTABLE RESPECTIVE TIME SLOTS TO A TALKING BUS, A CONFERENCE CIRCUIT COMPRISING A FIRST STORAGE CELL, A FIRST SWITCH FOR CONNECTING SAID FIRST STORAGE CELL TO SAID TALKING BUS IN ALL TIME SLOTS ASSIGNED TO PARTIES IN A CONFERENCE FOR EFFECTING RESONANT TRANSFERS OF ENERGY BETWEEN SAID FIRST STORAGE CELL AND SAID LINE CIRCUITS, A SECOND STORAGE CELL, AND A SECOND SWITCH CONNECTED BETWEEN SAID FIRST AND SECOND STORAGE CELLS AND OPERATIVE AFTER THE OPERATION OF SAID FIRST SWITCH FOR EFFECTING A RESONANT TRANSFER OF A PORTION OF THE ENERGY IN SAID FIRST STORAGE CELL AND ALL OF THE ENERGY IN SAID SECOND STORAGE CELL.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |