Patent US3122532A successfully refreshed from Google Patents.
US3122532A
Expired / Lapsed
US
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Monoazo dyestuffs
Assignee: Novartis AG
•
Filing: 1961-10-10
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Granted: 1964-02-25
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Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 Hurbin Meinrad
- 👤 Schetty Guido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:33
CPC Classifications
C; C09; C09B; C09B41/00; C09B29/00; C09B29/24; C09B29/28; C09B29/30; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE MONAZO DYESTUFF HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
THE MONAZO DYESTUFF HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2785158A
Cited
US2975167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |