Patent US3553473A successfully refreshed from Google Patents.
Patent US2367516A successfully refreshed from Google Patents.
US2367516A
Expired / Lapsed
US
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Water spot prevention in photographic film
Assignee: Eastman Kodak Co
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Filing: 1941-11-29
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Granted: 1945-01-16
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Expires: 1961-11-29
Abstract
No abstract record available.
Inventors
- 👤 Lowell E Muehler
- 👤 Charles J Kunz
- 👤 George T Eaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:48
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/16; F; F26; F26B; F26B5/00; F26B5/005; G03C5/00; G03C5/26; G03C5/268
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) | 1948-01-16 | 1948-07-17 | 1949-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-01-16 | 1952-07-17 | 1953-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-01-16 | 1956-07-17 | 1957-01-16 | $7700.00 | Window Closed / Lapsed |