US3515715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternized pyrazolylazo dyes
Assignee: Novartis Corp
•
Filing: 1967-01-23
•
Granted: 1970-06-02
•
Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 John G Fisher
- 👤 David J Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:24
CPC Classifications
C; C09; C09B; C09B44/00; C09B44/10; C09B44/14; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |