US3896255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording sheet
Assignee: Fujifilm Holdings Corp
•
Filing: 1973-07-13
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Granted: 1975-07-22
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Expires: 1993-07-13
Abstract
Abstract A recording sheet which comprises a layer of a color developer which forms a color image upon contact with a color coupler, said layer containing at least one metal compound of an aromatic carboxylic acid and a surface active agent is disclosed.
Inventors
- 👤 Hajime Kato
- 👤 Takao Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:16
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
39 words
A RECORDING SHEET WHICH COMPRISES A, LAYER OF A COLOR DEVELOPER WHICH FORMS A COLOR IMAGE UPON CONTACT WITH A COLOR COUPLER, SAID LAYER CONTAINING AT LEAST ONE METAL COMPOUND OF AN AROMATIC CARBOXYLIC ACID REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
39 words
A RECORDING SHEET WHICH COMPRISES A, LAYER OF A COLOR DEVELOPER WHICH FORMS A COLOR IMAGE UPON CONTACT WITH A COLOR COUPLER, SAID LAYER CONTAINING AT LEAST ONE METAL COMPOUND OF AN AROMATIC CARBOXYLIC ACID REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
51 words
A recording sheet according to claim 1 wherein the metal in said metal compound of an aromatic carboxylic acid is a member of Group I B, Group II A, Group II B, Group III B, Group IV A, Group VI A, Group VII B or Group VIII of the Periodic Table.
Claim 4
Dependent Claim
37 words
A recording sheet according to claim 1 wherein said surface active agent is contained in an amount more than 0.5 parts by weight per 100 parts by weight of said metal compound of an aromatic carboxylic acid.
Claim 5
Dependent Claim
27 words
A recording shEet according to claim 1 wherein said surface active agent is an anionic surface active agent, cationic surface active agent or monionic surface active agent.
Claim 6
Dependent Claim
18 words
A recording sheet according to claim 1 wherein said surface active agent is an anionic surface active agent.
References Cited (Backward Citations)
US3418250A
Cited
US3689302A
Cited
US3664858A
Cited
US3767449A
Cited
US3772052A
Cited
US3723156A
Cited
US3843383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |