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US3341512A
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Benzene-azo-barbituric acid dyestuffs
Assignee: Novartis AG
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Filing: 1964-08-17
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Granted: 1967-09-12
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Hans E Wegmuller
- 👤 Bossard Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:36
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/16; D06P1/18; C; C09; C09B; C09B31/00; C09B31/02; C09B31/12; C09B31/14; C09B31/143; C09B39/00; D06P5/00; D06P5/20; D06P5/2044; D06P5/2055; Y; Y10; Y10S; Y10S8/00; Y10S8/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
5 words
A DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2216446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |