Patent US3128351A successfully refreshed from Google Patents.
US3128351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repertory dialer
Assignee: AT&T Inc
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Filing: 1960-03-02
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Granted: 1964-04-07
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Expires: 1980-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence A Hohmann
- 👤 Frank W Kinsman
- 👤 Theodore P Nenninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:33
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274; H04M1/276
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A REPERTORY DIALER COMPRISING DIALING MEANS FOR GENERATING SIGNALS, A MULTICHANNEL STORAGE MEDIUM, TRANSDUCER MEANS FOR RECORDING ON THE STORAGE MEDIUM SIGNALS GENERATED BY THE DIALING MEANS AND FOR REPRODUCING SIGNALS PREVIOUSLY RECORDED ON THE STORAGE MEDIUM, DRIVE MEANS FOR MOVING THE STORAGE MEDIUM, AND MEANS FOR PREVENTING THE DRIVE MEANS FROM MOVING THE STORAGE MEDIUM WHEN THE TRANSDUCER MEANS IS NOT POSITIONED IN ALIGNMENT WITH ONE OF THE CHANNELS OF THE STORAGE MEDIUM.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |