Patent US6358278B1 successfully refreshed from Google Patents.
Patent US2245429A successfully refreshed from Google Patents.
US2245429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of photographic film base
Assignee: Eastman Kodak Co
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Filing: 1937-05-18
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Granted: 1941-06-10
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Expires: 1957-05-18
Abstract
No abstract record available.
Inventors
- 👤 Emmett K Carver
- 👤 Clarence L A Wynd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:27
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08L; C08L1/00; C08L1/08; C08L1/16; C08L1/18; C08J2301/00; C08J2301/08; C08J2301/16; C08J2301/18
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) | 1944-06-09 | 1944-12-09 | 1945-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-09 | 1948-12-09 | 1949-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-09 | 1952-12-09 | 1953-06-10 | $7700.00 | Window Closed / Lapsed |