US3408349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azine ion-radical salts
Assignee: Wyeth Holdings LLC
•
Filing: 1963-12-04
•
Granted: 1968-10-29
•
Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Matsunaga Yoshio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:39
CPC Classifications
H; H10; H10K; H10K85/00; H10K85/60; H10K85/611; H01; H01C; H01C7/00; H01C7/04; H01C7/049; H10K85/615; H10K85/621; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/856
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPLEX OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPLEX OF THE FORMULA
References Cited (Backward Citations)
US3117125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |