Patent US3408482A successfully refreshed from Google Patents.
US3408482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for sequentially scanning lines, as in test scoring
Assignee: OPTICAL SEANNING Corp
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Filing: 1962-07-05
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Granted: 1968-10-29
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Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 John W Busby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:31
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/02; G06K17/00; G06K17/0032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB286460A
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US2010653A
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US2231494A
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US2726859A
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US2916546A
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US2944734A
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US3011152A
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US3199079A
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US3095473A
Cited
US3216132A
Cited
US3212203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |