US2984674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amides of podophyllic acid and picropodophyllic acid
Assignee: Sandoz AG
•
Filing: 1960-06-21
•
Granted: 1961-05-16
•
Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Rutschmann Jurg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
PODOPHYLLIC ACID AMIDE.
Claim 2
Dependent Claim
3 words
PODOPHYLLIC ACID AMIDE.
References Cited (Backward Citations)
US2828314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |