US2875190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallizable azo dyes prepared from a benzothiazole derivative and beta-naphthol
Assignee: Eastman Kodak Co
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Filing: 1957-04-15
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Granted: 1959-02-24
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 John G Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:02
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
AS A COMPOSITION OF MATTER, THE AZO COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOAZO COMPOUNDS AND THEIR METAL COMPLEXES IN COMBINATION WITH A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, COPPER, CHROMIUM, MANGANESE, IRON AND VANADIUM, SAID MONOAZO COMPOUNDS HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
46 words
AS A COMPOSITION OF MATTER, THE AZO COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOAZO COMPOUNDS AND THEIR METAL COMPLEXES IN COMBINATION WITH A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, COPPER, CHROMIUM, MANGANESE, IRON AND VANADIUM, SAID MONOAZO COMPOUNDS HAVING THE STRUCTURAL 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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |