US3743503A
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Electro-photographic process using a liquid developer containing a polymeric dye
Assignee: Eastman Kodak Co
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Filing: 1970-02-24
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Granted: 1973-07-03
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Expires: 1990-02-24
Abstract
Abstract LIQUID DEVELOPER COMPOSITIONS FOR USE IN DEVELOPING ELECTROSTATIC CHARGE PATTERNS ARE FORMED OF AN ELECTRICALLY INSULATING ORGANIC CARRIER LIQUID HAVING DISPERSED THEREIN MARKING PARTICLES COMPRISED OF A POLYMERIC DYE HAVING A LINEAR BACKBONE CHAIN TO WHICH ARE ATTACHED PENDANT SIDE CHAINS CONTAINING A CHROMOPHORIC MOIETY.
Inventors
- 👤 M Goldman
- 👤 S Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/13; G03G9/131; C; C09; C09B; C09B69/00; C09B69/10; G03G9/122
Claims Analysis
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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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |