US2478366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymethine dyes
Assignee: Eastman Kodak Co
•
Filing: 1944-01-22
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Granted: 1949-08-09
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Expires: 1964-01-22
Abstract
No abstract record available.
Inventors
- 👤 Leslie G S Brooker
- 👤 Frank L White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:54
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/06; C09B23/0008; C09B23/0025; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2065411A
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US2083804A
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US2060023A
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US2156464A
Cited
GB466097A
Cited
US2335861A
Cited
US2292001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |