Patent US4696449A successfully refreshed from Google Patents.
Patent US3676139A successfully refreshed from Google Patents.
US3676139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic printing paper
Assignee: Fujifilm Holdings Corp
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Filing: 1969-01-13
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Granted: 1972-07-11
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Expires: 1989-01-13
Abstract
Abstract A COLOR PHOTOGRAPHIC PRINTING PAPER CONTAINING AN ULTRAVIOLET ABSORBENT AND A FLUORESCENT BRIGHTENING AGENT REPRESENTED BY THE FORMULA X-((4-R1-S-TRIAZIN-1,6-YLENE)-N(-R0)-(3-(M-O3S-)-1,4- PHENYLENE)-CH=CH-(2-(M-O3S-)-1,4-PHENYLENE)-N(-R0)-(4-R1- S-TRIAZIN-2,6-YLENE)-N(-R2)-Y-N(-R2))N-X, AND X-((4-R1- S-TRIAZIN-2,6-YLENE)-N(-R0)-(3-(M-O3S-)-1,4-PHENYLENE)-CH= CH-(2-(M-O3S-)-1,4-PHENYLENE)-N(-R0)-(4-R1-S-TRIAZIN-2,6- YLENE)-N(-R2)-Y-(Z)-Y-N(-R2))N-X
Inventors
- 👤 Hiroyuki Amano
- 👤 Fumihiki Nishio
- 👤 Nobuo Tsuji
- 👤 Kazuo Shirasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:36
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; Y; Y10; Y10S; Y10S430/00; Y10S430/132; Y10S430/134
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |