US3288941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dictating system
Assignee: International Business Machines Corp
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Filing: 1963-12-30
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Granted: 1966-11-29
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Matthew P Langendorf
- 👤 Lloyd E West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:08
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A CONTROL SYSTEM FOR USE WITH A CENTRAL DICTATING MACHINE HAVING RECORDING-REPRODUCING MEANS AND A RECORDING MEDIUM, THE RECORDING-REPRODUCING MEANS HAVING A SINGLE RECORD WINDING, AT LEAST OEN REMOTE DICTATING STATION, EACH STATION HAVING MEANS TO ACUTATE THE RECORDING-REPRODUCING MEANS OF THE DICTATING MACHINE FOR DICTATING FROM THE STATION ON THE RECORDING MEDIUM, MEANS TO ACTUATE THE RECORDING-REPRODUCING MEANS FOR REVIEWING THE MATERIAL ON THE RECORDING MEDIUM FROM THE STATION, AND MEANS TO CONNECT THE DICTATING MEANS AND THE REVIEW MEANS OF ONLY ONE STATION WITH THE DICTATING MACHINE AT ANY TIME, SAID CONTROL SYSTEM INCLUDING: MEANS TO AUTOMATICALLY RECORD A DISTINCTIVE SIGNAL ON THE RECORDING MEDIUM THROUGH THE SINGLE RECORD WINDING OF THE RECORDED MATERIAL OF THE DISCONNECTED STATION ON THE RECORDED MATERIAL OF THE DISCONNECTED STATION ON THE RECORDING MEDIUM AND ON THE SAME TRACK AS THE RECORDED MATERIAL OF THE DISCONNECTED STATION; AND MEANS RESPONSIVE TO SAID RECORDED DISTINCTIVE SIGNAL TO PREVENT LISTENING AT THE NEXT CONNECTED REMOTE STATION TO THE MATERIAL RECORDED ON THE RECORDING MEDIUM PRIOR TO SAID DISTINCTIVE SIGNAL.
Claim 2
Dependent Claim
175 words
A CONTROL SYSTEM FOR USE WITH A CENTRAL DICTATING MACHINE HAVING RECORDING-REPRODUCING MEANS AND A RECORDING MEDIUM, THE RECORDING-REPRODUCING MEANS HAVING A SINGLE RECORD WINDING, AT LEAST OEN REMOTE DICTATING STATION, EACH STATION HAVING MEANS TO ACUTATE THE RECORDING-REPRODUCING MEANS OF THE DICTATING MACHINE FOR DICTATING FROM THE STATION ON THE RECORDING MEDIUM, MEANS TO ACTUATE THE RECORDING-REPRODUCING MEANS FOR REVIEWING THE MATERIAL ON THE RECORDING MEDIUM FROM THE STATION, AND MEANS TO CONNECT THE DICTATING MEANS AND THE REVIEW MEANS OF ONLY ONE STATION WITH THE DICTATING MACHINE AT ANY TIME, SAID CONTROL SYSTEM INCLUDING: MEANS TO AUTOMATICALLY RECORD A DISTINCTIVE SIGNAL ON THE RECORDING MEDIUM THROUGH THE SINGLE RECORD WINDING OF THE RECORDED MATERIAL OF THE DISCONNECTED STATION ON THE RECORDED MATERIAL OF THE DISCONNECTED STATION ON THE RECORDING MEDIUM AND ON THE SAME TRACK AS THE RECORDED MATERIAL OF THE DISCONNECTED STATION; AND MEANS RESPONSIVE TO SAID RECORDED DISTINCTIVE SIGNAL TO PREVENT LISTENING AT THE NEXT CONNECTED REMOTE STATION TO THE MATERIAL RECORDED ON THE RECORDING MEDIUM PRIOR TO SAID DISTINCTIVE SIGNAL.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |