US2903442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazine monoazo-dyestuffs
Assignee: BASF Schweiz AG
•
Filing: 1957-09-03
•
Granted: 1959-09-08
•
Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Riat Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/08; C09B62/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A WATER-SOLUBLE MONOAZO DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
7 words
A WATER-SOLUBLE MONOAZO DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
GB760347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |