US2967858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo dyestuffs of low water solubility
Assignee: Sandoz AG
•
Filing: 1959-02-05
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Granted: 1961-01-10
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Expires: 1979-02-05
Abstract
No abstract record available.
Inventors
- 👤 Merian Ernest
- 👤 Muller Curt
- 👤 Senn Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:44
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/06; C09B29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A MONOAZO DYESTUFF OF LOW SOLUBILITY IN WATER, OF THE FORMULA
Claim 2
Dependent Claim
11 words
A MONOAZO DYESTUFF OF LOW SOLUBILITY IN WATER, OF THE 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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |