US2938033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of vinylpyridines
Assignee: —
•
Filing: —
•
Granted: 1960-05-24
•
Expires: 1977-05-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:27
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE METHOD OF STABILIZING A VINYLPYRIDINE HAVING THE STRUCTURE
Claim 2
Independent Claim
9 words
THE METHOD OF STABILIZING A VINYLPYRIDINE HAVING THE STRUCTURE
References Cited (Backward Citations)
US2733259A
Cited
US2445367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |