Patent US3465322A successfully refreshed from Google Patents.
US3465322A
Expired / Lapsed
US
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Transducer utilizing electro-optic effect
Assignee: International Business Machines Corp
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Filing: 1966-06-20
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Granted: 1969-09-02
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Expires: 1986-06-20
Abstract
No abstract record available.
Inventors
- 👤 Charles H Stapper Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:23
CPC Classifications
G; G11; G11B; G11B11/00; G11B11/10; G02; G02F; G02F1/00; G02F1/01; G02F1/09; G11B11/105; G11B11/10532; G11B11/10541; G11B11/10543; G11B11/10547
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2560430A
Cited
US2947212A
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US2984825A
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US2987249A
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US3171754A
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US3229273A
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US3228015A
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US3148354A
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US3196206A
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US3353894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |