US3277453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for recording and reproducing a plurality of timing tracks
Assignee: International Standard Electric Corp
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Filing: 1962-08-31
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Granted: 1966-10-04
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Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Heidenheim Rudolf Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:16
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/16; G04; G04F; G04F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE RECORDING METHOD COMPRISING THE STEPS OF RECORDING A MASTER TIMING TRACK ON A MAGNETIC DRUM DURING A FIRST REVOLUTION OF THE DRUM, READING THE RECORDED MASTER TIMING TRACK FROM THE DRUM AND SIMULTANEOUSLY RECORDING A PLURALITY OF SLAVE TRACKS UPON THE DRUM, AND
Claim 2
Dependent Claim
44 words
THE RECORDING METHOD COMPRISING THE STEPS OF RECORDING A MASTER TIMING TRACK ON A MAGNETIC DRUM DURING A FIRST REVOLUTION OF THE DRUM, READING THE RECORDED MASTER TIMING TRACK FROM THE DRUM AND SIMULTANEOUSLY RECORDING A PLURALITY OF SLAVE TRACKS UPON THE DRUM, AND
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |