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US3512170A
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Thermomagnetic recording and copying method and system
Assignee: Magnavox Electronic Systems Co
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Filing: 1966-09-27
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Granted: 1970-05-12
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Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:02
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/7805; G; G03; G03G; G03G19/00; G11; G11B; G11B9/00; G11B13/00; G11B13/04; G11B13/045; G11B5/00; G11B2005/0002; G11B2005/0005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2915594A
Cited
US2793135A
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US3110594A
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US3212889A
Cited
US3250636A
Cited
US3212891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |