US2440545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of yeast and of yeast and vitamin rich products
Assignee: Individual
•
Filing: 1941-11-03
•
Granted: 1948-04-27
•
Expires: 1961-11-03
Abstract
No abstract record available.
Inventors
- 👤 George A Jeffreys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:15
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/14; C12N1/16; C12P; C12P39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US454586A
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US2285465A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |