US3326684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stabilizing developed photosensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1962-08-20
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Granted: 1967-06-20
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Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 Nishio Fumihiko
- 👤 Sugiyama Mitsunori
- 👤 Nasu Kintaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/38; G03C5/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PROCESS FOR THE PRODUCTION OF A PHOTOGRAPHIC IMAGE IN A SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER WHICH COMPRISES DEVELOPING THE EMULSION LAYER AND STABILIZING THE UNDEVELOPED PORTIONS IN THE LAYER WITH A STABILIZING SOLUTION CONTAINING A SILVER-COMPLEX FORMING AGENT AND A THIOL COMPOUND, SAID SILVER COMPLEX FORMING AGENT BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL THIOCYANATE AND AMMONIUM THIOCYANATE, AND SAID THIOL COMPOUND BEING REPRESENTED BY THE GENERAL FORMULA X-(CH2)L-(CH(-Y))M-(CH2)M-SH WHEREIN X AND Y ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROXYL, ALKOXYL, AMINO, ALKYLAMINO, CARBOXYL, CARBALKOXYL, THIOL, SULFONIC ACID; HALOGEN, ALKYL, ARLY AND HETEROCYCLIC RING, AND L, M, AND N REPRESENTS RESPECTIVELY AN INTEGER OF 0,1, OR 2 AND (L+M+N) IS AN INTEGER LARGER THAN 0.
Claim 2
Dependent Claim
124 words
A PROCESS FOR THE PRODUCTION OF A PHOTOGRAPHIC IMAGE IN A SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER WHICH COMPRISES DEVELOPING THE EMULSION LAYER AND STABILIZING THE UNDEVELOPED PORTIONS IN THE LAYER WITH A STABILIZING SOLUTION CONTAINING A SILVER-COMPLEX FORMING AGENT AND A THIOL COMPOUND, SAID SILVER COMPLEX FORMING AGENT BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL THIOCYANATE AND AMMONIUM THIOCYANATE, AND SAID THIOL COMPOUND BEING REPRESENTED BY THE GENERAL FORMULA X-(CH2)L-(CH(-Y))M-(CH2)M-SH WHEREIN X AND Y ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROXYL, ALKOXYL, AMINO, ALKYLAMINO, CARBOXYL, CARBALKOXYL, THIOL, SULFONIC ACID; HALOGEN, ALKYL, ARLY AND HETEROCYCLIC RING, AND L, M, AND N REPRESENTS RESPECTIVELY AN INTEGER OF 0,1, OR 2 AND (L+M+N) IS AN INTEGER LARGER THAN 0.
References Cited (Backward Citations)
US2453346A
Cited
GB631184A
Cited
FR1090385A
Cited
US2710256A
Cited
US2956876A
Cited
US2875048A
Cited
US3137574A
Cited
US3099209A
Cited
US3072542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |