US3776734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive aluminum plate of improved storage stability
Assignee: Fujifilm Holdings Corp
•
Filing: 1972-02-29
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Granted: 1973-12-04
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Expires: 1992-02-29
Abstract
Abstract A photosensitive aluminum plate of improved storagability in which an anodically oxidized aluminum is used as a support and a silver halide is contained as a photosensitive material in the micropores of the oxide film formed on the support by anodic oxidation.
Inventors
- 👤 I Kumasaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:40
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/77; G03C1/005; G03C1/06; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
21 words
The photosensitive aluminum plate as claimed in claim 1 in which said aluminum plate is pure aluminum of an aluminum alloy.
Claim 2
Dependent Claim
18 words
The photosensitive aluminum plate as claimed in claim 2 in which said aluminum alloy is an aluminum-copper alloy.
Claim 3
Dependent Claim
29 words
The photosensitive aluminum plate as claimed in claim 1 in which said silver halide is selected from the group consisting of silver bromide, silver chloride and mixed silver halides.
Claim 4
Dependent Claim
17 words
The photosensitive aluminum plate as claimed in claim 4 in which said silver halide is silver bromide.
Claim 5
Dependent Claim
13 words
The photosensitive aluminum plate as claimed in claim 1 in which said 3-mercapto-5-methyl-4-phenyl-1,2,4-triazole.
Claim 6
Dependent Claim
20 words
The photosensitive aluminum plate as claimed in claim 1 in which a hydrohyilic colloid is additionally incorporated into said micropores.
Claim 7
Dependent Claim
30 words
The photosensitive aluminum plate as claimed in claim 7 in which said hydrophilic colloid is selected from the group consisting of gelatin, polyvinyl alcohol, methyl cellulose, gum arabic and agar-agar.
Claim 8
Dependent Claim
16 words
The photosensitive aluminum plate as claimed in claim 8 in which said hydrophilic colloid is gelatin.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |