US2432638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the isolation of penicillin
Assignee: Individual
•
Filing: 1944-04-28
•
Granted: 1947-12-16
•
Expires: 1964-04-28
Abstract
No abstract record available.
Inventors
- 👤 Jacques L Wachtel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:45
CPC Classifications
C; C07; C07D; C07D499/00; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/911; Y10S435/933; Y10S435/936
Claims Analysis
Total Claims: 0
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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) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |