Patent US3535684A successfully refreshed from Google Patents.
US3535684A
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Data storage and retrieval apparatus utilizing reflected light from a single optical source
Assignee: General Electric Co
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Filing: 1968-04-15
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Granted: 1970-10-20
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Expires: 1988-04-15
Abstract
No abstract record available.
Inventors
- 👤 Richard C Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:59
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/048; G03; G03G; G03G16/00
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |