Patent US3133911A successfully refreshed from Google Patents.
US3133911A
Expired / Lapsed
US
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Reactive dyestuffs
Assignee: Sandoz AG
•
Filing: 1960-05-23
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Granted: 1964-05-19
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Byland Hans-Rudolf
- 👤 Ischer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:19
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/01; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
REACTIVE DYES OF THE FORMULA
Claim 2
Dependent Claim
5 words
REACTIVE DYES OF THE FORMULA
References Cited (Backward Citations)
US1886480A
Cited
US2935506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |