US2932667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of monothiooxamides
Assignee: Wyeth Holdings LLC
•
Filing: 1956-10-18
•
Granted: 1960-04-12
•
Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Welcher Richard Parke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:40
CPC Classifications
C; C07; C07C; C07C279/00; C07C279/28; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A NEW COMPOSITION OF MATTER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
9 words
A NEW COMPOSITION OF MATTER HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2772309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |