US3170910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic azo compounds
Assignee: WEST LABORATORIES Inc
•
Filing: 1962-06-22
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Granted: 1965-02-23
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Otto E Neracher
- 👤 Cantor Abraham
- 👤 Schmidt William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:05
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/28
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |