Patent US3530258A successfully refreshed from Google Patents.
US3530258A
Expired / Lapsed
US
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Video signal transducer having servo controlled flexible fiber optic track centering
Assignee: Discovision Associates
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Filing: 1968-06-28
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Granted: 1970-09-22
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Expires: 1988-06-28
Abstract
No abstract record available.
Inventors
- 👤 David Paul Gregg
- 👤 Keith O Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:33
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/12; G11B7/135; G11B7/1372; G11B7/08; G11B7/085; G11B7/0857; G11B7/08576; G11B7/09; G11B7/0901; G11B7/0925; G11B7/0929; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; Y; Y10; Y10S; Y10S358/00; Y10S358/907
Claims Analysis
Total Claims: 0
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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) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |