US3085133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector with automatically controlled ringing
Assignee: TDK Micronas GmbH
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Filing: 1959-02-24
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Granted: 1963-04-09
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Hutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:01
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A TELEPHONE SYSTEM, MEANS FOR EXTENDING CALLS THROUGH SAID TELEPHONE SYSTEM, MEANS RESPONSIVE TO A PLURALITY OF DIGIT PULSE TRAINS FOR OPERATING SAID CALL EXTENDING MEANS, MEANS COMPRISING A SEQUENCE DEVICE FOR DIRECTING AT LEAST SOME OF SAID DIGIT PULSE TRAINS TO CONTROL THE EXTENSION OF SAID CALLS THROUGH SAID TELEPHONE SYSTEM, MEANS FOR GENERATING CYCLICALLY RECURRING PULSES, MEANS RESPONSIVE TO SAID CYCLICALLY RECURRING PULSES FOR OPERATING SAID SEQUENCE DEVICE TO MEASURE A PREDETERMINED PERIOD OF TIME AFTER THE EXTENSION OF SAID CALL, MEANS FOR TRANSMITTING CONTINUOUSLY APPLIED RINGING CURRENT THROUGH AT LEAST PART OF SAID TELEPHONE SYSTEM FOR THE DURATION OF SAID PREDETERMINED TIME PERIOD, AND MEANS RESPONSIVE TO FURTHER OPERATION OF SAID SEQUENCE DEVICE FOR TRANSMITTING INTERRUPTED RINGING CURRENT THROUGH AT LEAST PART OF SAID TELEPHONE SYSTEM.
Claim 2
Dependent Claim
130 words
IN A TELEPHONE SYSTEM, MEANS FOR EXTENDING CALLS THROUGH SAID TELEPHONE SYSTEM, MEANS RESPONSIVE TO A PLURALITY OF DIGIT PULSE TRAINS FOR OPERATING SAID CALL EXTENDING MEANS, MEANS COMPRISING A SEQUENCE DEVICE FOR DIRECTING AT LEAST SOME OF SAID DIGIT PULSE TRAINS TO CONTROL THE EXTENSION OF SAID CALLS THROUGH SAID TELEPHONE SYSTEM, MEANS FOR GENERATING CYCLICALLY RECURRING PULSES, MEANS RESPONSIVE TO SAID CYCLICALLY RECURRING PULSES FOR OPERATING SAID SEQUENCE DEVICE TO MEASURE A PREDETERMINED PERIOD OF TIME AFTER THE EXTENSION OF SAID CALL, MEANS FOR TRANSMITTING CONTINUOUSLY APPLIED RINGING CURRENT THROUGH AT LEAST PART OF SAID TELEPHONE SYSTEM FOR THE DURATION OF SAID PREDETERMINED TIME PERIOD, AND MEANS RESPONSIVE TO FURTHER OPERATION OF SAID SEQUENCE DEVICE FOR TRANSMITTING INTERRUPTED RINGING CURRENT THROUGH AT LEAST PART OF SAID TELEPHONE SYSTEM.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |