US3615534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide light-sensitive elements useful in preventing yellow fog
Assignee: Fujifilm Holdings Corp
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Filing: 1968-09-23
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Granted: 1971-10-26
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Expires: 1988-09-23
Abstract
Abstract A photographic silver halide light-sensitive element comprising a support having thereon at least one layer containing a silver halide, wherein one colloid containing layer of said element contains:
Inventors
- 👤 Tatsuya Tajima
- 👤 Kunioki Ohmura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:06
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
The photographic silver halide light-sensitive element as claimed in claim 1 wherein said salt of benzenesulfinic acid is sodium benzenesulfinate.
Claim 2
Dependent Claim
33 words
The photographic silver halide light-sensitive element as claimed in claim 1 wherein said salt of a substituted benzenesulfinic acid is selected from the group consisting of sodium p-toluenesulfinate, sodium p-chlorobenzenesulfinate, and sodium p-aminobenzenesulfinate.
Claim 3
Dependent Claim
26 words
The photographic silver halide light-sensitive element of claim 1 wherein the amount of the iodate compound present is 0.5 grams per kg. of silver halide emulsion.
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 |