Patent US5674192A successfully refreshed from Google Patents.
Patent US3160709A successfully refreshed from Google Patents.
US3160709A
Expired / Lapsed
US
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Telephone call accounting system
Assignee: CONSOLIDATED SYSTEMS CORP
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Filing: 1959-03-30
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Granted: 1964-12-08
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Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Harry E Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:49
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/04; H04M15/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A SYSTEM FOR KEEPING ACCOUNT OF TELEPHONE CALLS PLACED THROUGH A TELEPHONE EXCHANGE FROM ANY OF A PLURALITY OF LOCAL TELEPHONE SUBSCRIBERS, THE COMBINATION WHICH COMPRISES A MAIN STORAGE FACILITY FOR STORING A LARGE PLURALITY OF DIGITALLY ENCODED WORDS, A CALL MONITORING SYSTEM COUPLED BETWEEN THE MAIN STORAGE FACILITY AND THE TELEPHONE EXCHANGE, SAID CALL MONITORING SYSTEM OPERATING CONTINUALLY AND WITHOUT INTERRUPTION AND INCLUDING MONITORING MEANS FOR SENSING, ENCODING AND ACCUMULATING INTO A COMPLETE DIGITAL WORD DURING THE PROGRESS OF EACH CALL INFORMATION IDENTIFYING THE CALLING SUBSCRIBER, THE CALLED PARTY AND THE TIME DURATION OF THE CALL, AND ALSO INCLUDING MEANS FOR TRANSFERRING EACH COMPLETE WORD INTACT FROM THE MONITORING MEANS TO THE MAIN
Claim 2
Dependent Claim
115 words
IN A SYSTEM FOR KEEPING ACCOUNT OF TELEPHONE CALLS PLACED THROUGH A TELEPHONE EXCHANGE FROM ANY OF A PLURALITY OF LOCAL TELEPHONE SUBSCRIBERS, THE COMBINATION WHICH COMPRISES A MAIN STORAGE FACILITY FOR STORING A LARGE PLURALITY OF DIGITALLY ENCODED WORDS, A CALL MONITORING SYSTEM COUPLED BETWEEN THE MAIN STORAGE FACILITY AND THE TELEPHONE EXCHANGE, SAID CALL MONITORING SYSTEM OPERATING CONTINUALLY AND WITHOUT INTERRUPTION AND INCLUDING MONITORING MEANS FOR SENSING, ENCODING AND ACCUMULATING INTO A COMPLETE DIGITAL WORD DURING THE PROGRESS OF EACH CALL INFORMATION IDENTIFYING THE CALLING SUBSCRIBER, THE CALLED PARTY AND THE TIME DURATION OF THE CALL, AND ALSO INCLUDING MEANS FOR TRANSFERRING EACH COMPLETE WORD INTACT FROM THE MONITORING MEANS TO THE MAIN
References Cited (Backward Citations)
US2369868A
Cited
US2639092A
Cited
US2850720A
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US3117187A
Cited
US2886642A
Cited
GB763828A
Cited
US2886643A
Cited
US2984704A
Cited
US3106613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |