US3775128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide emulsion containing a triazine as antifoggant
Assignee: Fujifilm Holdings Corp
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Filing: 1972-08-21
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Granted: 1973-11-27
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Expires: 1992-08-21
Abstract
Abstract wherein R1, R2 and R3 each represents a hydrogen atom or an alkyl group substituted by a hydroxyl group, wherein R1, R2 and R3 are not simultaneously a hydrogen atom, is disclosed. A silver halide photographic light-sensitive material comprising a silver halide photographic emulsion containing a compound represented by the following general formula (I);
Inventors
- 👤 N Yamamoto
- 👤 Y Minagawa
- 👤 T Sueyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/81; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
The silver halide photographic emulsion of claim 1, wherein said alkyl group for R1 and R2 is -CH2CH2OH, -CH2CH2OCH2OH or
Claim 2
Dependent Claim
17 words
The silver halide photographic emulsion of claim 1, wherein said compound of the general formula (I) is:
Claim 3
Dependent Claim
43 words
A silver halide photographic light-sensitive element comprising a support having thereon at least one silver halide photographic emulsion layer and containing in said photographic emulsion layer or in another emulsion layer on said support a compound represented by the following general formula (I)
References Cited (Backward Citations)
US2586168A
Cited
US2708162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |