Patent US3170911A successfully refreshed from Google Patents.
US3170911A
Expired / Lapsed
US
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Reactive azo dyestuffs
Assignee: Sandoz AG
•
Filing: 1961-08-10
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Granted: 1965-02-23
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Benz Jakob
- 👤 Schweizer August
- 👤 Wasem Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:31
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/008; C09B62/0083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
REACTIVE MONOAZO DYE OF THE FORMULA
Claim 2
Dependent Claim
6 words
REACTIVE MONOAZO DYE OF THE FORMULA
References Cited (Backward Citations)
DE80888C
Cited
BE569964A
Cited
US2993885A
Cited
US2935506A
Cited
US2945021A
Cited
US3093628A
Cited
US3114746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |