US2768160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo compounds containing a hydroxy substituted polyfluorinated group
Assignee: Eastman Kodak Co
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Filing: 1953-09-30
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Granted: 1956-10-23
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Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 Edmund B Towne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:21
CPC Classifications
C; C09; C09B; C09B29/00; C09B62/00; C09B62/44; C09B62/54; C09B62/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
THE AZO COMPOUNDS FREE OF WATER-SOLUBILIZING SUBSTITUTENTS AND HAVING THE FORMULA:
Claim 2
Dependent Claim
11 words
THE AZO COMPOUNDS FREE OF WATER-SOLUBILIZING SUBSTITUTENTS AND 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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |