US3234336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic storage repertory dialer
Assignee: AT&T Inc
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Filing: 1962-04-20
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Granted: 1966-02-08
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Expires: 1982-04-20
Abstract
No abstract record available.
Inventors
- 👤 George W Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:35
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274; H04M1/276
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A REPERTORY DIALER ADAPTED FOR CONNECTION TO A TELEPHONE LINE COMPRISING, IN COMBINATION, REPERTORY STORAGE MEANS, OSCILLATOR MEANS, MEANS FOR RECORDING A DIRECTORY NUMBER IN SAID STORAGE MEANS IN THE FORM OF GROUPS OF SIGNALS GENERATED BY SAID OSCILLATOR, MEANS FOR SHIFTING SAID DIALER FROM A RECORD TO A REPRODUCE MODE, MEANS INCLUDING SWITCHING MEANS RESPONSIVE TO SAID MODE SHIFTING MEANS FOR CONVERTING SAID OSCILLATOR MEANS INTO SIGNAL AMPLIFYING MEANS, MEANS FOR EXTRACTING SAID GROUPS OF SIGNALS RECORDED BY SAID STORAGE MEANS, MEANS FOR APPLYING EXTRACTED ONES OF SAID GROUPS OF SIGNALS TO SAID AMPLIFYING MEANS, AND MEANS INCLUDING A MULTIVIBRATOR CIRCUIT FOR APPLYING AMPLIFIED ONES OF SAID GROUPS OF SIGNALS TO SAID TELEPHONE LINE IN THE FROM OF DIRECT-CURRENT PULSES.
Claim 2
Dependent Claim
121 words
A REPERTORY DIALER ADAPTED FOR CONNECTION TO A TELEPHONE LINE COMPRISING, IN COMBINATION, REPERTORY STORAGE MEANS, OSCILLATOR MEANS, MEANS FOR RECORDING A DIRECTORY NUMBER IN SAID STORAGE MEANS IN THE FORM OF GROUPS OF SIGNALS GENERATED BY SAID OSCILLATOR, MEANS FOR SHIFTING SAID DIALER FROM A RECORD TO A REPRODUCE MODE, MEANS INCLUDING SWITCHING MEANS RESPONSIVE TO SAID MODE SHIFTING MEANS FOR CONVERTING SAID OSCILLATOR MEANS INTO SIGNAL AMPLIFYING MEANS, MEANS FOR EXTRACTING SAID GROUPS OF SIGNALS RECORDED BY SAID STORAGE MEANS, MEANS FOR APPLYING EXTRACTED ONES OF SAID GROUPS OF SIGNALS TO SAID AMPLIFYING MEANS, AND MEANS INCLUDING A MULTIVIBRATOR CIRCUIT FOR APPLYING AMPLIFIED ONES OF SAID GROUPS OF SIGNALS TO SAID TELEPHONE LINE IN THE FROM OF DIRECT-CURRENT PULSES.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |