US2448876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed symmetrical opening photographic shutter
Assignee: Eastman Kodak Co
•
Filing: 1945-05-21
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Granted: 1948-09-07
•
Expires: 1965-05-21
Abstract
No abstract record available.
Inventors
- 👤 Carl C Fuerst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:44
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B9/18; G03B9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2165401A
Cited
US2333807A
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US2271340A
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US2245248A
Cited
US2308725A
Cited
US2333820A
Cited
US2362547A
Cited
US2362546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |