US2443274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means of rendering animal fats
Assignee: Individual
•
Filing: 1945-08-03
•
Granted: 1948-06-15
•
Expires: 1965-08-03
Abstract
No abstract record available.
Inventors
- 👤 Schroeder Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:36
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US179883A
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US189541A
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US550342A
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US567210A
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US668210A
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US707565A
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GB190422238A
Cited
US1000086A
Cited
US1024230A
Cited
US1785361A
Cited
US2199670A
Cited
US2341817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |