US3560235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersions
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1968-06-21
•
Granted: 1971-02-02
•
Expires: 1988-06-21
Abstract
Abstract NON-FLOCCULATING PIGMENT COMPOSITIONS, SUITABLE FOR USE IN PRINTING INKS AND PAINTS, ARE PREPARED BY BLEEDING PIGMENTS WITH ESSENTIALLY COLOURLESS COMPOUNDS CONTAINING AT LEAST ONE UREA OR URETHANE GROUP AND AT LEAST ONE BASIC AMINO GROUP, PREFERABLY A TERTIARY AMINO GROUP, NOT ATTACHED TO AN AROMATIC NUCLEUS.
Inventors
- 👤 Donald Thomas Sarfas
- 👤 Arthur Topham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:45
CPC Classifications
C; C09; C09D; C09D11/00; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08L; C08L75/00; C08L75/02; C09B; C09B67/00; C09B67/006; C09B67/0065; C09C; C09C3/00; C09C3/006; C09C3/04; C09C3/041; C09C3/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |