US2646734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoflash synchronizing mechanism for focal plane shutter cameras
Assignee: Ernst Leitz Wetzlar GmbH
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Filing: 1951-05-29
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Granted: 1953-07-28
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Expires: 1971-05-29
Abstract
No abstract record available.
Inventors
- 👤 Wagner Adam
- 👤 Jung Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/70; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123112A
Cited
US2263045A
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US2284486A
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US2291190A
Cited
FR909143A
Cited
US2455365A
Cited
US2552250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |