Patent US2405731A successfully refreshed from Google Patents.
US2405731A
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US
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Variable circle for stadiametric range finders
Assignee: Eastman Kodak Co
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Filing: 1943-12-17
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Granted: 1946-08-13
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Expires: 1963-12-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Beggs
- 👤 Daniel B Mc-Rae
- 👤 John H Eagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
G; G01; G01C; G01C3/00; G01C3/22; G01P; G01P3/00; G01P3/36; G01P3/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-08-12 | 1950-02-11 | 1950-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-08-12 | 1954-02-11 | 1954-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-08-12 | 1958-02-11 | 1958-08-13 | $7700.00 | Window Closed / Lapsed |