US2519310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 2-mercaptoimidazole
Assignee: Wyeth Holdings LLC
•
Filing: 1948-12-01
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Granted: 1950-08-15
•
Expires: 1968-12-01
Abstract
No abstract record available.
Inventors
- 👤 Alice M Dessert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:28
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/84
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
9 words
A METHOD OF PREPARING 2-MERCAPTIOMIDAZOLES HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |