Patent US2916482A successfully refreshed from Google Patents.
US2916482A
Expired / Lapsed
US
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Metallizable azo dyes prepared from substituted aminobenzothiazoles and a beta-naphthol
Assignee: Eastman Kodak Co
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Filing: 1957-04-15
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Granted: 1959-12-08
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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
2026-10-29 15:16
CPC Classifications
C; C09; C09B; C09B45/00; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
AS A COMPOSITION OF MATTER, THE AZO COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AZO COMPOUNDS AND THEIR METAL COMPLEXES CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT, COPPER, IRON, MANGANESE, NICKEL AND VANADIUM, SAID AZO COMPOUNDS HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
44 words
AS A COMPOSITION OF MATTER, THE AZO COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AZO COMPOUNDS AND THEIR METAL COMPLEXES CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT, COPPER, IRON, MANGANESE, NICKEL AND VANADIUM, SAID AZO 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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |