Patent US2981943A successfully refreshed from Google Patents.
Patent US3095473A successfully refreshed from Google Patents.
US3095473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Editing system for electronic recordings
Assignee: Ampex Corp
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Filing: 1960-05-16
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Granted: 1963-06-25
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Roizen Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:40
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; G; G11; G11B; G11B27/00; G11B27/02; G11B27/022; G11B27/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
APPARATUS FOR MONITORING INFORMATION MAGNETICALLY RECORDED ALONG A PLURALITY OF SUCCESSIVE TRACKS SUBSTANTIALLY TRANSVERSE TO THE LENGTH OF A MAGNETIC TAPE COMPRISING: A DRUM; A PLURALITY OF MAGNETIC TRANSDUCERS MOUNTED ON AND SPACED AROUND THE CIRCUMFERENCE OF THE DRUM IN LATERAL OFF-SET RELATION WITH THE CIRCUMFERENTIAL SPACING BETWEEN SUCCESSIVE TRANSDUCERS BEING EQUAL TO THE LENGTH OF THE RECORDED TRACKS AND WITH THE LATERAL OFF-SET BETWEEN SUCCESSIVE TRANSDUCERS BEING EQUAL TO THE DISTANCE BETWEEN CENTER LINES OF SUCCESSIVE RECORDED TRACKS; MEANS FOR ROTATING THE DRUM TO BRING THE TRANSDUCERS IN SEQUENCE INTO SCANNING POSITION WITH RESPECTIVE SEQUENTIAL TRACKS OF A SELECTED STATIONARY PORTION OF THE TAPE; MEANS FOR DISPLAYING THE INFORMATION OF THE SCANNED TRACKS; AND MEANS FOR SELECTIVELY MOVING THE TAPE LONGITUDINALLY PAST THE DRUM BETWEEN STATIONARY SCANNING POSITIONS.
Claim 2
Dependent Claim
129 words
APPARATUS FOR MONITORING INFORMATION MAGNETICALLY RECORDED ALONG A PLURALITY OF SUCCESSIVE TRACKS SUBSTANTIALLY TRANSVERSE TO THE LENGTH OF A MAGNETIC TAPE COMPRISING: A DRUM; A PLURALITY OF MAGNETIC TRANSDUCERS MOUNTED ON AND SPACED AROUND THE CIRCUMFERENCE OF THE DRUM IN LATERAL OFF-SET RELATION WITH THE CIRCUMFERENTIAL SPACING BETWEEN SUCCESSIVE TRANSDUCERS BEING EQUAL TO THE LENGTH OF THE RECORDED TRACKS AND WITH THE LATERAL OFF-SET BETWEEN SUCCESSIVE TRANSDUCERS BEING EQUAL TO THE DISTANCE BETWEEN CENTER LINES OF SUCCESSIVE RECORDED TRACKS; MEANS FOR ROTATING THE DRUM TO BRING THE TRANSDUCERS IN SEQUENCE INTO SCANNING POSITION WITH RESPECTIVE SEQUENTIAL TRACKS OF A SELECTED STATIONARY PORTION OF THE TAPE; MEANS FOR DISPLAYING THE INFORMATION OF THE SCANNED TRACKS; AND MEANS FOR SELECTIVELY MOVING THE TAPE LONGITUDINALLY PAST THE DRUM BETWEEN STATIONARY SCANNING POSITIONS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |