US3416873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester dyeing with 1-(2-methoxy-4-nitrobenzeneazo) - 2 - hydroxy-11h-benzo (a)carbazole-3-carbox-p-anisidide
Assignee: OTTO B MAY Inc
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Filing: 1967-10-11
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Granted: 1968-12-17
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Expires: 1987-10-11
Abstract
No abstract record available.
Inventors
- 👤 Fono Andrew
- 👤 Siddiqui Mohammad Nasimuddin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:15
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/10; C09B29/18; C09B29/22; D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54
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) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |