US3038893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazo dyes containing a dihalogeno triazine substituent
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1959-11-16
•
Granted: 1962-06-12
•
Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Andrew Herbert Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:20
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/08; C09B62/095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
DYES OF THE FORMULA
Claim 2
Dependent Claim
4 words
DYES OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |