Patent US2871231A successfully refreshed from Google Patents.
US2871231A
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Thiazoleazodiphenylamine compounds
Assignee: Eastman Kodak Co
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Filing: 1955-12-29
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Granted: 1959-01-27
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 David J Wallace
- 👤 John G Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:00
CPC Classifications
C; C07; C07C; C07C255/00; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/58; C07F; C07F1/00; C07F1/005; C07F11/00; C07F11/005; C07F15/00; C07F15/04; C07F15/045; C07F15/06; C07F15/065; C07F9/00; C07F9/005; C09; C09B; C09B29/00; C09B29/0025; C09B29/0074; C09B29/0077; C09B29/0085; C09B29/06; C09B29/08; C09B29/0805; C09B29/0807; C09B29/0809; C09B29/24; C09B29/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPLEX METAL A MEMBER SELECTED FROM THE GROUP SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT, COPPER, IRON, MANGANESE, NICKEL AND VANADIUM IN COMPLEX COMBINATION WITH A MONOAZO COMPOUND WHICH HAS THE FORMULA:
Claim 2
Dependent Claim
34 words
A COMPLEX METAL A MEMBER SELECTED FROM THE GROUP SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT, COPPER, IRON, MANGANESE, NICKEL AND VANADIUM IN COMPLEX COMBINATION WITH A MONOAZO COMPOUND WHICH HAS THE FORMULA:
References Cited (Backward Citations)
US2109552A
Cited
US2683709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |