Patent US2507149A successfully refreshed from Google Patents.
US2507149A
Expired / Lapsed
US
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Two-blade setting type shutter
Assignee: Eastman Kodak Co
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Filing: 1948-01-07
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Granted: 1950-05-09
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Expires: 1968-01-07
Abstract
No abstract record available.
Inventors
- 👤 Carl C Fuerst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:58
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US284645A
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US1250354A
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US1274262A
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DE507594C
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US2051225A
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US2179718A
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US2326077A
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US2390216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |