US2448790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of penicillin
Assignee: Merck and Co Inc
•
Filing: 1943-05-15
•
Granted: 1948-09-07
•
Expires: 1963-05-15
Abstract
No abstract record available.
Inventors
- 👤 Jackson W Foster
- 👤 Lloyd E Mcdaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:11
CPC Classifications
C; C12; C12P; C12P37/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1582408A
Cited
US2006086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |