Patent US2533478A successfully refreshed from Google Patents.
US2533478A
Expired / Lapsed
US
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Temperature compensating means for lens mounts
Assignee: Eastman Kodak Co
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Filing: 1947-08-13
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Granted: 1950-12-12
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Expires: 1967-08-13
Abstract
No abstract record available.
Inventors
- 👤 Charles M Lee
- 👤 Gordon L Barringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:32
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325936A
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US2219224A
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US2240827A
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US2234707A
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US2341364A
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US2423491A
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US2423492A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |