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US3512866A
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Magneto-optical hand viewer
Assignee: Magnavox Electronic Systems Co
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Filing: 1965-12-03
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Granted: 1970-05-19
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Expires: 1985-12-03
Abstract
No abstract record available.
Inventors
- 👤 Henry W Griffiths
- 👤 Alfred M Nelson
- 👤 Arthur W Evansen
- 👤 Alfred E Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:35
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/36; G02; G02F; G02F1/00; G02F1/01; G02F1/09; G02F1/092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1080432A
Cited
US3142720A
Cited
US3158673A
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US3200701A
Cited
US3284785A
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US3268879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |