US2746953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-nitrothiazoleazoaniline compounds
Assignee: Eastman Kodak Co
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Filing: 1951-12-21
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Granted: 1956-05-22
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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
2026-11-02 00:23
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/58; C09; C09B; C09B29/00; C09B29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE AZO COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
THE AZO COMPOUNDS HAVING THE GENERAL 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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |