US3342801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water insoluble pyrazolone monoazo dyestuffs
Assignee: Novartis Corp
•
Filing: 1964-05-18
•
Granted: 1967-09-19
•
Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Illy Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:04
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/18; C07D231/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A MONOAZO DYE OF THE FORMULA
Claim 2
Dependent Claim
6 words
A MONOAZO DYE OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |