Patent US2632004A successfully refreshed from Google Patents.
US2632004A
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Resin azo dye
Assignee: Eastman Kodak Co
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Filing: 1949-09-29
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Granted: 1953-03-17
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Expires: 1969-09-29
Abstract
No abstract record available.
Inventors
- 👤 Louis M Minsk
- 👤 Chechak Jonas John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:04
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/78; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A RESIN-DYE TO THE AZO DYE SERIES CONTAINING A HYDROXYALKYL GROUP SELECTED FROM THE GROUP CONSISTING OF C-HYDROXYALKYL AND N-HYDROXYALKYL GROUPS LOCATED IN AT LEAST ONE OF THE POSITIONS OTHER THAN THE POSITION ORTHO TO THE AXO GROUP, THE SAID HYDROXYL GROUP HAVING BEEN ESTERIFED BY A SYNTHETIC POLYMER CONTAINING A GROUP SELECTED FROM THE GROUP CONSISTING OF CARBOXYLIC HALIDE AND CARBOXYLIC ANHYDRIDE GROUPS, SAID SYNTHETIC POLYMER BEING A POLYMER OF A POLYMERIZABLE, UNSATURATED COMPOUND CONTAINING A CH2=C< GROUP.
Claim 2
Dependent Claim
79 words
A RESIN-DYE TO THE AZO DYE SERIES CONTAINING A HYDROXYALKYL GROUP SELECTED FROM THE GROUP CONSISTING OF C-HYDROXYALKYL AND N-HYDROXYALKYL GROUPS LOCATED IN AT LEAST ONE OF THE POSITIONS OTHER THAN THE POSITION ORTHO TO THE AXO GROUP, THE SAID HYDROXYL GROUP HAVING BEEN ESTERIFED BY A SYNTHETIC POLYMER CONTAINING A GROUP SELECTED FROM THE GROUP CONSISTING OF CARBOXYLIC HALIDE AND CARBOXYLIC ANHYDRIDE GROUPS, SAID SYNTHETIC POLYMER BEING A POLYMER OF A POLYMERIZABLE, UNSATURATED COMPOUND CONTAINING A CH2=C< GROUP.
References Cited (Backward Citations)
US1984417A
Cited
US2050588A
Cited
US2274551A
Cited
US2350090A
Cited
US2304890A
Cited
US2472215A
Cited
US2473403A
Cited
US2477462A
Cited
US2465067A
Cited
US2520339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |