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US2683709A
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US
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5-nitrothiazoleazo-nu, nu-substituted aniline-compounds
Assignee: Eastman Kodak Co
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Filing: 1951-12-21
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Granted: 1954-07-13
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Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 Edmund B Towne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:41
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/0025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
THE AZO COMPOUNDS HAVING THE GENERAL FORMULA: WHEREIN R REPRESENTS A HYDROXYALKYL GROUP HAVING 2 TO 5, INCLUSIVE, CARBON ATOMS AND Z REPRESENTS AN ALKYL GROUP HAVING 1 TO 4, INCLUSIVE, CARBON ATOMS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |