Patent US2495355A successfully refreshed from Google Patents.
US2495355A
Expired / Lapsed
US
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Focusing mechanism for twin lens reflex cameras
Assignee: CIRO CAMERAS Inc
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Filing: 1946-08-30
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Granted: 1950-01-24
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Expires: 1966-08-30
Abstract
No abstract record available.
Inventors
- 👤 Stahl Rodolphe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:44
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/18; G03B13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1152238A
Cited
US1187136A
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US1856432A
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FR778677A
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DE643094C
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US2165341A
Cited
US2297401A
Cited
US2309403A
Cited
US2386575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |