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Patent US3222355A successfully refreshed from Google Patents.
US3222355A
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Disazo dyes
Assignee: ACNA Chimica Organica SpA
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Filing: 1963-02-04
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Granted: 1965-12-07
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Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Gaetani Ermanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:01
CPC Classifications
C; C09; C09B; C09B35/00; C09B35/02; C09B35/039; C09B35/04; C09B31/00; C09B31/02; C09B31/04; C09B31/043; C09B31/06; C09B31/16; C09B35/35; C09B35/36; C09B35/362; C09B43/00; C09B43/08; C09B43/10; D; D06; D06P; D06P3/00; D06P3/79; D06P3/794; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 0
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |