US3118871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monazinium azo compounds
Assignee: Wyeth Holdings LLC
•
Filing: 1960-12-12
•
Granted: 1964-01-21
•
Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Brody Frederick
- 👤 Walter J Sydor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:21
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
4 words
COMPOUNDS OF 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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |