US2832761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzothiazole azo pyrazolone compounds
Assignee: Eastman Kodak Co
•
Filing: 1954-08-20
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Granted: 1958-04-29
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Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 Jr John Sagal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:27
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/12; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82; C09; C09B; C09B29/00; C09B29/0025; C09B29/0074; C09B29/0077; C09B29/0085; C09B29/0088; C09B29/34; C09B29/36; C09B29/3604; C09B29/3647; C09B29/3652; C09B29/366; C09B45/00; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AS A COMPOSITION OF MATTER, THE AZO COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOAZO COMPOUNDS AND THEIR METAL COMPLEXES CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT, COPPER, IRON, MANGANESE, NICKEL AND VANADIUM, SAID MONOAZO COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
43 words
AS A COMPOSITION OF MATTER, THE AZO COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOAZO COMPOUNDS AND THEIR METAL COMPLEXES CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT, COPPER, IRON, MANGANESE, NICKEL AND VANADIUM, SAID MONOAZO COMPOUNDS HAVING THE 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) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |