US3153122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic switching system
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1961-09-05
•
Granted: 1964-10-13
•
Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Faulkner
- 👤 Donald K Melvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:43
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A COMMUNICATION SWITCHING SYSTEM COMPRISING A PLURALITY OF TERMINATING UNITS, SWITCHING MEANS FOR ESTABLISHING CONNECTIONS BETWEEN SAID TERMINATING UNITS, A SOURCE OF RECURRING PULSES, AND COMMON CONTROL EQUIPMENT SHARED ON A TIME DIVISION MULTIPLEX BASIS BY A PLURALITY OF SAID CONNECTIONS UNDER THE CONTROL OF SAID SOURCE; SAID EQUIPMENT INCLUDING A RECIRCULATING MEMORY HAVING A COORDINATE ARRAY OF ELEMENTS FOR STORING INFORMATTION, SAID SOURCE INCLUDING AN ARRANGEMENT FOR SUPPLYING TO ROWS OF ELEMENTS OF THE MEMORY PULSES IN TIME SLOTS EACH OCCURRING ONCE PER RECURRING CYCLE WITH EACH ROW INDIVIDUALLY ASSOCIATED WITH ONE TIME SLOT, AND LOGIC CIRCUITS FOR MODIFYING THE INFORMATION STORED IN SAID ELEMENTS, RESPONSIVE TO SIGNALS RECEIVED FROM
Claim 2
Dependent Claim
111 words
A COMMUNICATION SWITCHING SYSTEM COMPRISING A PLURALITY OF TERMINATING UNITS, SWITCHING MEANS FOR ESTABLISHING CONNECTIONS BETWEEN SAID TERMINATING UNITS, A SOURCE OF RECURRING PULSES, AND COMMON CONTROL EQUIPMENT SHARED ON A TIME DIVISION MULTIPLEX BASIS BY A PLURALITY OF SAID CONNECTIONS UNDER THE CONTROL OF SAID SOURCE; SAID EQUIPMENT INCLUDING A RECIRCULATING MEMORY HAVING A COORDINATE ARRAY OF ELEMENTS FOR STORING INFORMATTION, SAID SOURCE INCLUDING AN ARRANGEMENT FOR SUPPLYING TO ROWS OF ELEMENTS OF THE MEMORY PULSES IN TIME SLOTS EACH OCCURRING ONCE PER RECURRING CYCLE WITH EACH ROW INDIVIDUALLY ASSOCIATED WITH ONE TIME SLOT, AND LOGIC CIRCUITS FOR MODIFYING THE INFORMATION STORED IN SAID ELEMENTS, RESPONSIVE TO SIGNALS RECEIVED FROM
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |