US3230307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlock system for wideband magnetic recording and reproducing systems
Assignee: Ampex Corp
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Filing: 1962-09-04
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Granted: 1966-01-18
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Norman F Bounsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:05
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/02; G11B27/022; G11B27/024; G11B27/029; G11B27/10; G11B27/11; G11B27/13; G11B27/19; G11B27/28; G11B27/32; G11B2220/00; G11B2220/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A SYSTEM FOR BRINGING A CONTINUOUSLY DRIVEN RECORDING AND REPRODUCING SYSTEM UP TO SPEED IN INTERLOCKED RELATION RELATIVE TO OTHER RECORDING AND REPRODUCING SYSTEMS, EACH OF THE RECORDING AND REPRODUCING SYSTEMS HAVING A RECORD MEMBER, THE SYSTEM COMPRISING: MEANS RESPONSIVE TO THE OPERATION OF THE FIRST CONTINUOUSLY DRIVEN RECORDING AND REPRODUCING SYSTEM FOR PROVIDING FIRST TIMING SIGNALS, THE NUMBER OF WHICH IS REPRESENTATIVE OF THE EXTENT OF MOVEMENT OF THE FIRST SYSTEM; MEANS RESPONSIVE TO THE MOVEMENT OF THE REMAINING SYSTEMS FOR PROVIDING SECOND TIMING SIGNALS, THE NUMBER OF WHICH IS REPRESENTATIVE OF THE EXTENT OF MOVEMENT OF THE REMAINING SYSTEMS; AND, MEANS RESPONSIVE TO DIFFERENCES BETWEEN THE NUMBERS OF FIRST AND SECOND TIMING SIGNALS FOR ADJUSTING THE RATE OF MOVEMENT OF THE FIRST RECORDING AND REPRODUCING SYSTEM.
References Cited (Backward Citations)
US3064173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |