Patent US3615542A successfully refreshed from Google Patents.
US3615542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive silver halide color-photographic material
Assignee: Konica Minolta Inc
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Filing: 1968-02-29
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Granted: 1971-10-26
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Expires: 1988-02-29
Abstract
Abstract Light-sensitive silver halide color-photographic material comprises a support and, coated thereon, a light-sensitive silver halide emulsion layer containing a color former, and a complex formed from (a) an alkali-soluble phenolic compound having a hydroxyl group on its benzene nucleus and capable of reducing silver halide and (b) a water-soluble polymeric vinyl compound capable of forming a complex with said phenolic compound, said complex being included in said emulsion and/or in a layer contiguous therewith.
Inventors
- 👤 Masanobu Oguchi
- 👤 Kensaku Tanimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:52
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/396; G03C1/00; G03C1/005; G03C1/04; G03C1/053; G03C1/06; G03C1/42; G03C7/39208
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
A light-sensitive silver halide color-photographic material as claimed in claim 1, wherein said material is a monochromatic color or tri-color photographic film.
Claim 2
Dependent Claim
35 words
A light-sensitive silver halide color-photographic material as claimed in claim 1, wherein said combination is present in at least one layer selected from light-sensitive emulsion layer, interlayer, protective layer, antihalation layer, filter layer and sublayer.
Claim 3
Dependent Claim
29 words
A light-sensitive silver halide color-photographic material as claimed in claim 1, wherein said phenolic compound is one member selected from black-and-white developers having at least one phenolic hydroxyl group.
Claim 4
Dependent Claim
30 words
A light-sensitive silver halide color-photographic material as claimed in claim 1, wherein said polymeric vinyl compound is one member selected from polyvinyl pyrrolidone, polyvinyl oxazolidone, polyvinyl piperidone and polyvinyl caprolactam.
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |