US3795618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrographic carrier vehicle and developer composition
Assignee: Eastman Kodak Co
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Filing: 1972-03-21
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Granted: 1974-03-05
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Expires: 1992-03-21
Abstract
Abstract A "BLENDED" CARRIER VEHICLE FOR USE IN ELECTROGRAPHIC DEVELOPERS, PARTICULARLY MAGNETIC BRUSH DEVELOPERS, IS DESCRIBED. THE CARRIER VEHICLE IS COMPOSED OF A MIXTURES OF (A) FINELY-DIVIDED CORE PARTICLES HAVING A RESINOUS COATING OF A METAL ION-LINKED A-OLEFIN-CARBOXYLIC ACID COPOLYMER AND (B) CORE PARTICLES HAVING A RESINOUS COATING OF A VINYLIDENE CHLORIDE-CONTAINING COPOLYMER. ELECTROGRAPHIC DEVELOPERS CONTAINING TONER PARTICLES ADMIXED WITH SUCH "BLENDED" CARRIER VEHICLES ARE ALSO DISCLOSED.
Inventors
- 👤 G Kasper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:02
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/10; G03G9/113; G03G9/1139
Claims Analysis
Total Claims: 0
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |