Patent US1248133A successfully refreshed from Google Patents.
US3256268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-containing naphthol-azonaphthol reactive dyestuffs
Assignee: Novartis AG
•
Filing: 1960-11-10
•
Granted: 1966-06-14
•
Expires: 1980-11-10
Abstract
No abstract record available.
Inventors
- 👤 Dussy Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:08
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE MONOAZO DYESTUFF OF THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
THE MONOAZO DYESTUFF OF THE GENERAL 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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |