Patent US2708162A successfully refreshed from Google Patents.
US2708162A
Expired / Lapsed
US
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Urazole stabilizer for emulsions sensitized with alkylene oxide polymers
Assignee: Eastman Kodak Co
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Filing: 1954-04-29
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Granted: 1955-05-10
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Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Burt H Carroll
- 👤 Norman F Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:53
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/04; G03C1/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A LIGHT-SENSITIVE SILVER HALIDE EMULSION SENSITIZED WITH AN ALKYLENE OXIDE POLYMER SELECTED FROM THE CLASS CONSISTING OF (1) POLYALKYLENE GLYCOLS, (2) CONDENSATION PRODUCTS OF ALKYLENE OXIDE WITH GLYCOLS, (3) CONDENSATION PRODUCTS OF ALKYLENE OXIDE WITH ALIPHATIC COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF ALCOHOLS, ACIDS AND AMINES, (4) CONDENSATION PRODUCTS OF ALKYLENE OXIDE WITH PHENOLS, AND (5) CONDENSATION PRODUCT OF ALKYLENE OXIDE WITH HEXITOL RING DEHYDRATION PRODUCTS, SAID ALKYLENE OXIDE CONTAINING FROM 2 TO 4 CARBON ATOMS AND SAID ALKYLENE OXIDE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 300, SAID EMULSION CONTAINING URAZOLE AS A FOG INHIBITING AGENT.
Claim 2
Dependent Claim
99 words
A LIGHT-SENSITIVE SILVER HALIDE EMULSION SENSITIZED WITH AN ALKYLENE OXIDE POLYMER SELECTED FROM THE CLASS CONSISTING OF (1) POLYALKYLENE GLYCOLS, (2) CONDENSATION PRODUCTS OF ALKYLENE OXIDE WITH GLYCOLS, (3) CONDENSATION PRODUCTS OF ALKYLENE OXIDE WITH ALIPHATIC COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF ALCOHOLS, ACIDS AND AMINES, (4) CONDENSATION PRODUCTS OF ALKYLENE OXIDE WITH PHENOLS, AND (5) CONDENSATION PRODUCT OF ALKYLENE OXIDE WITH HEXITOL RING DEHYDRATION PRODUCTS, SAID ALKYLENE OXIDE CONTAINING FROM 2 TO 4 CARBON ATOMS AND SAID ALKYLENE OXIDE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 300, SAID EMULSION CONTAINING URAZOLE AS A FOG INHIBITING AGENT.
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) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |