US2521706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yeast drying apparatus
Assignee: Individual
•
Filing: 1943-04-14
•
Granted: 1950-09-12
•
Expires: 1963-04-14
Abstract
No abstract record available.
Inventors
- 👤 Albert M Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:23
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/28; F26B17/284; F26B17/286; C; C12; C12N; C12N1/00; C12N1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US279219A
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US685823A
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US1717491A
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US1853451A
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US1873833A
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US1957146A
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US2259606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |