US3889271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink jet process utilizing novel dyes
Assignee: Agfa Gevaert AG
•
Filing: 1973-11-27
•
Granted: 1975-06-10
•
Expires: 1993-11-27
Abstract
Abstract As dyes for inks that are particularly suitable in the ink jet process there are suggested yellow, magenta and cyan dyes particularly described hereinafter. The yellow and magenta dyes are novel azo dyes and the cyan dyes are known copper phthalocyanine dyes having sulfo groups.
Inventors
- 👤 Karl-Heinz Freytag
- 👤 Rudolf Meyer
- 👤 Klaus Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:11
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09B; C09B29/00; C09B29/06; C09B29/08; C09B29/0801; C09B43/00; C09B43/12; C09B43/136; C09B43/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
A PROCESS FOR THE PRODUCTION OF AN IMAGE ON A SUPPORT, WHEREIN A JET OF INK IS IMAGEWISE MODULATED BY ELECTRICAL SIGNALS AND IS DIRECTED AT A SUPPORT HAVING A COMPONENT OF MOVEMENT PERPENDICULAR TO THE DIRECTION OF THE INK JET, WHEREIN THE IMPROVEMENT COMPRISES CONTAINING IN THE INK AN AQUEOUS DYE SOLUTION INCLUDING ONE OR MORE DYES SELECTED FROM THE GROUP CONSISTING OF THE FOLLOWING: A. A YELLOW DYE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
74 words
A PROCESS FOR THE PRODUCTION OF AN IMAGE ON A SUPPORT, WHEREIN A JET OF INK IS IMAGEWISE MODULATED BY ELECTRICAL SIGNALS AND IS DIRECTED AT A SUPPORT HAVING A COMPONENT OF MOVEMENT PERPENDICULAR TO THE DIRECTION OF THE INK JET, WHEREIN THE IMPROVEMENT COMPRISES CONTAINING IN THE INK AN AQUEOUS DYE SOLUTION INCLUDING ONE OR MORE DYES SELECTED FROM THE GROUP CONSISTING OF THE FOLLOWING: A. A YELLOW DYE HAVING THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
25 words
A process as claimed in claim 1 wherein the ink comprises a copper phthalocyanine having on an average 2 to 3 sulfo groups per molecule.
References Cited (Backward Citations)
US2712006A
Cited
US3316239A
Cited
US3413280A
Cited
US3494911A
Cited
US3270349A
Cited
US3435023A
Cited
US3416153A
Cited
US3488343A
Cited
US3476874A
Cited
US3598594A
Cited
US3562757A
Cited
US3596276A
Cited
US3693179A
Cited
US3698002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |