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Patent US2011055A successfully refreshed from Google Patents.
US2011055A
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Extruder and method of extruding
Assignee: SWANN FERTILIZER Co
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Filing: 1931-10-07
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Granted: 1935-08-13
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Expires: 1951-10-07
Abstract
No abstract record available.
Inventors
- 👤 Bethune G Klugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/248
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) | 1938-08-12 | 1939-02-11 | 1939-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-08-12 | 1943-02-11 | 1943-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-08-12 | 1947-02-11 | 1947-08-13 | $7700.00 | Window Closed / Lapsed |