US3112052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape control system
Assignee: Winston Research Corp
•
Filing: 1962-07-16
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Granted: 1963-11-26
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Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Wayne R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43; G11B15/46; G11B15/52
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A CONTROL SYSTEM FOR A MOVABLE RECORD MEMBER HAVING A PILOT SIGNAL RECORDED THEREON OF A PREDETERMINED FREQUENCY, SAID CONTROL SYSTEM INCLUDING: FIRST TRANSDUCER MEANS RESPONSIVE TO THE RECORDED PILOT SIGNAL FOR PRODUCING A FIRST CONTROL SIGNAL; SECOND TRANSDUCER MEANS SPACED ALONG THE PATH OF SAID RECORD MEMBER FROM SAID FIRST TRANSDUCER MEANS AND RESPONSIVE TO THE RECORDED PILOT SIGNAL FOR PRODUCING A SECOND CONTROL SIGNAL; DRIVE MEANS FOR SAID RECORD MEMBER; AND CONTROL CIRCUIT MEANS COUPLING SAID FIRST AND SECOND TRANSDUCER MEANS TO SAID DRIVE MEANS FOR CONTROLLING THE SPEED AND THE TENSION OF SAID RECORD MEMBER.
References Cited (Backward Citations)
US2963555A
Cited
US3050954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |