US2785157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzothiazoleazoaniline compounds
Assignee: Eastman Kodak Co
•
Filing: 1952-11-05
•
Granted: 1957-03-12
•
Expires: 1972-11-05
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 David J Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:12
CPC Classifications
C; 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)
US2040928A
Cited
US2073600A
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US2149051A
Cited
US2441612A
Cited
US2355675A
Cited
US2516302A
Cited
US2590092A
Cited
US2659719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |