US3255173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber reactive monoazo and disazo dyes with an indole coupling component
Assignee: BASF SE
•
Filing: 1963-06-17
•
Granted: 1966-06-07
•
Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Dehnert Johannes
- 👤 Leuchs Dieter
- 👤 Luetzel Gerhard
- 👤 Rohland Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:38
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B39/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DYE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A DYE OF THE FORMULA:
References Cited (Backward Citations)
US1113622A
Cited
US1114750A
Cited
US1835393A
Cited
US2476259A
Cited
US2970994A
Cited
US3070592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |