US3084153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble monoazo benzothiazole dyestuffs
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1959-10-28
•
Granted: 1963-04-02
•
Expires: 1979-10-28
Abstract
No abstract record available.
Inventors
- 👤 Fishwick Brian Ribbons
- 👤 Johnson Eric Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:27
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
WATER-INSOLUBLE AZO DYESTUFFS OF THE FORMULA:
Claim 2
Dependent Claim
6 words
WATER-INSOLUBLE AZO DYESTUFFS 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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |