US2435835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curtain slot adjusting means to control the exposure time of camera shutters
Assignee: Graflex Inc
•
Filing: 1945-06-06
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Granted: 1948-02-10
•
Expires: 1965-06-06
Abstract
No abstract record available.
Inventors
- 👤 Edson S Hineline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:12
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/28; G03B9/32; G03B9/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US704755A
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US1077157A
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US1204154A
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US2122671A
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US2136148A
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US2184016A
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US2186614A
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US2218248A
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US2242124A
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US2257012A
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US2253084A
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US2350026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |