US3156772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone message unit recording system
Assignee: AT&T Inc
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Filing: 1961-05-29
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Granted: 1964-11-10
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Freericks Lambert
- 👤 Herbert L Kukasch
- 👤 Thomas B Luzon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:39
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/10; H04M15/12; H04M15/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A TELEPHONE SYSTEM, AN ELECTRONIC MESSAGE REGISTER COMPRISING A MAGNETIC MEMORY CORE MATRIX ARRAY HAVING ROWS AND COLUMNS, MEANS INCLUDING A WINDING UNIQUELY COUPLED TO EACH CORE OF SAID MATRIX FOR SETTING A CORE ON USAGE OF AN ASSOCIATED SUBSCRIBER LINE, A ROW OF BUFFER MAGNETIC CORES, MEANS FOR TRANSFERRING INFORMATION STORED IN ANY CORE IN A COLUMN OF SAID MATRIX TO A UNIQUE BUFFER CORE, MEANS FOR SCANNING SUCCESSIVE ROWS OF CORES OF SAID MATRIX TO RESET ANY SET AND FOR OPERATING SAID TRANSFERRING MEANS, AND MEANS FOR INTERRUPTING SAID MATRIX ROW SCANNING AND FOR SCANNING SAID BUFFER CORES INDIVIDUALLY ON RESETTING OF ANY ONE OF SAID MATRIX CORES.
Claim 2
Dependent Claim
111 words
IN A TELEPHONE SYSTEM, AN ELECTRONIC MESSAGE REGISTER COMPRISING A MAGNETIC MEMORY CORE MATRIX ARRAY HAVING ROWS AND COLUMNS, MEANS INCLUDING A WINDING UNIQUELY COUPLED TO EACH CORE OF SAID MATRIX FOR SETTING A CORE ON USAGE OF AN ASSOCIATED SUBSCRIBER LINE, A ROW OF BUFFER MAGNETIC CORES, MEANS FOR TRANSFERRING INFORMATION STORED IN ANY CORE IN A COLUMN OF SAID MATRIX TO A UNIQUE BUFFER CORE, MEANS FOR SCANNING SUCCESSIVE ROWS OF CORES OF SAID MATRIX TO RESET ANY SET AND FOR OPERATING SAID TRANSFERRING MEANS, AND MEANS FOR INTERRUPTING SAID MATRIX ROW SCANNING AND FOR SCANNING SAID BUFFER CORES INDIVIDUALLY ON RESETTING OF ANY ONE OF SAID MATRIX CORES.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |