US2948614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized photographic silver halede
Assignee: —
•
Filing: 1957-07-11
•
Granted: 1960-08-09
•
Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING (A) AN ALKYLENE OXIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYALKYLENE GLYCOLS AND CONDENSATION PRODUCTS OF ALKYENE OXIDE CONTAINING FROM 2 TO 4 CARBON ATOMS WITH AN ORGANIC COMPOUND CONTAINING AN ACTIVE HYDROGEN ATOM SELECTED FROM THE CLASS CONSISTING OF ALCOHOLS, PHENOLS, AMINES, MERCAPTANS, ACIDS, AMIDES, AND HYDROCARBONS, SAID ALKYLENE OXIDE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 300, AND (B) 5-THIOCTIC ACID.
Claim 2
Dependent Claim
71 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING (A) AN ALKYLENE OXIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYALKYLENE GLYCOLS AND CONDENSATION PRODUCTS OF ALKYENE OXIDE CONTAINING FROM 2 TO 4 CARBON ATOMS WITH AN ORGANIC COMPOUND CONTAINING AN ACTIVE HYDROGEN ATOM SELECTED FROM THE CLASS CONSISTING OF ALCOHOLS, PHENOLS, AMINES, MERCAPTANS, ACIDS, AMIDES, AND HYDROCARBONS, SAID ALKYLENE OXIDE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 300, AND (B) 5-THIOCTIC ACID.
References Cited (Backward Citations)
US2728668A
Cited
US2708161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |