Patent US3512000A successfully refreshed from Google Patents.
US3512000A
Expired / Lapsed
US
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Radiation sensitive exposure control unit
Assignee: Eastman Kodak Co
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Filing: 1969-06-24
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Granted: 1970-05-12
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Expires: 1989-06-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:58
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/80; G03B7/00; G03B7/08; G03B7/081; G03B7/083
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) | 1973-05-11 | 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 |