Patent US3115597A successfully refreshed from Google Patents.
US3115597A
Expired / Lapsed
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Motor control system adapted for telephone answering and message recording
Assignee: SALZBERG
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Filing: 1959-05-11
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Granted: 1963-12-24
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Emmett R Salzberg
- 👤 David M Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:12
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/6515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN COMBINATION WITH A TAPE CARRYING CONDUCTIVE MATERIAL LENGTHWISE AND HAVING AN INTERRUPTION IN SAID CONDUCTIVE MATERIAL, THE COMBINATION COMPRISING AN ELECTRICT MOTOR, MEANS CONTROLLED BY SAID MOTOR FOR MOVING THE TAPE, CIRCUITS MEANS FOR ENERGIZING SAID MOTOR, A SWITCH IN SAID CIRCUIT MEANS CONTROLLED BY THE CONDUCTIVE MATERIAL IN SAID TAPE, AND MEANS IN THE CIRCUIT MEANS FOR DEENERGIZING SAID MOTOR TO STOP MOVEMENT OF SAID TAPE WHEN SAID INTERRUPTION REACHES SAID SWITCH.
Claim 2
Dependent Claim
74 words
IN COMBINATION WITH A TAPE CARRYING CONDUCTIVE MATERIAL LENGTHWISE AND HAVING AN INTERRUPTION IN SAID CONDUCTIVE MATERIAL, THE COMBINATION COMPRISING AN ELECTRICT MOTOR, MEANS CONTROLLED BY SAID MOTOR FOR MOVING THE TAPE, CIRCUITS MEANS FOR ENERGIZING SAID MOTOR, A SWITCH IN SAID CIRCUIT MEANS CONTROLLED BY THE CONDUCTIVE MATERIAL IN SAID TAPE, AND MEANS IN THE CIRCUIT MEANS FOR DEENERGIZING SAID MOTOR TO STOP MOVEMENT OF SAID TAPE WHEN SAID INTERRUPTION REACHES SAID SWITCH.
References Cited (Backward Citations)
US2915417A
Cited
US2948836A
Cited
US2828232A
Cited
US2957112A
Cited
US3006167A
Cited
GB843156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |