US2625565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of thio-alkyl pantothenamides
Assignee: Parke Davis and Co LLC
•
Filing: 1951-03-28
•
Granted: 1953-01-13
•
Expires: 1971-03-28
Abstract
No abstract record available.
Inventors
- 👤 Esmond E Snell
- 👤 Eugene L Wittle
- 👤 James A Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/45; C07C233/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
PROCESS FOR OBTAINING A MEMBER OF THE CLASS CONSISTING OF A COMPOUND OF THE FORMULA,
Claim 2
Dependent Claim
15 words
PROCESS FOR OBTAINING A MEMBER OF THE CLASS CONSISTING OF A COMPOUND OF THE FORMULA,
References Cited (Backward Citations)
US2340757A
Cited
US2485116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |