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Patent US3485961A successfully refreshed from Google Patents.
US3485961A
Expired / Lapsed
US
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Control system for re-recorders which senses and compares original and copy records
Assignee: Eastman Kodak Co
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Filing: 1966-09-30
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Granted: 1969-12-23
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Robert C Lovick
- 👤 Robert F Scheg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:35
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/36; G11B27/02; G11B27/022; G11B27/029; G11B5/00; G11B5/86; G11B2220/00; G11B2220/90; G11B27/024
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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |