US3169124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo reactive dyes
Assignee: Sandoz AG
•
Filing: 1961-10-05
•
Granted: 1965-02-09
•
Expires: 1981-10-05
Abstract
No abstract record available.
Inventors
- 👤 Ischer Hans
- 👤 Siegrist Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/465; C09B62/47
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)
US2975167A
Cited
FR1245115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |