Patent US3001983A successfully refreshed from Google Patents.
US3001983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo dyestuffs
Assignee: Novartis AG
•
Filing: 1959-05-18
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Granted: 1961-09-26
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Schmid Otto
- 👤 Hurbin Meinrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:38
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/24; C09B29/28; C09B29/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
THE MONOAZO DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
THE MONOAZO DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2205848A
Cited
US2776962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |