US3666470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic printing element containing fluorescent dye
Assignee: Fujifilm Holdings Corp
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Filing: 1969-07-03
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Granted: 1972-05-30
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Expires: 1989-07-03
Abstract
Abstract A PHOTOGRAPHIC PRINTING ELEMENT CONTAINING A WATERSOLUBLE FLUORESCENT WHITENING DYE AND A WATER-SOLUBLE POLYMER OF AN N-VINYLAMIDE COMPOUND.
Inventors
- 👤 Nobuo Tsuji
- 👤 Takushi Miyazako
- 👤 Fumihiko Nishio
- 👤 Tatsuya Tajima
- 👤 Yoshinori Tsuchiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:46
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/81; G03C1/8155; Y; Y10; Y10S; Y10S430/00; Y10S430/134
Claims Analysis
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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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |