US3157630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-containing monoazo dyestuffs having a cyanuric halide radical
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1958-06-18
•
Granted: 1964-11-17
•
Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Stephen William Elliott
- 👤 Tilley Colin George
- 👤 Vellins Cyril Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:15
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/08; C09B62/095; C09B45/00; C09B45/02; C09B45/14; C09B45/18; C09B45/48
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1667312A
Cited
US1779298A
Cited
US2653149A
Cited
US2763640A
Cited
US2835663A
Cited
FR1139796A
Cited
FR1139795A
Cited
US2892829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |