Patent US3404612A successfully refreshed from Google Patents.
US3404612A
Expired / Lapsed
US
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Light regulation means for use with multilamp flash units
Assignee: Eastman Kodak Co
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Filing: 1965-07-12
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Granted: 1968-10-08
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Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Donald M Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:37
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/041; G03B15/0431; G03B15/0442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3111274A
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US2697390A
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US2811907A
Cited
US2810819A
Cited
US3167256A
Cited
US3296947A
Cited
US3286611A
Cited
US3319547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |