Patent US2427644A successfully refreshed from Google Patents.
US2427644A
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Method of and apparatus for rotary extruder
Assignee: Flakice Corp
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Filing: 1944-01-20
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Granted: 1947-09-16
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Expires: 1964-01-20
Abstract
No abstract record available.
Inventors
- 👤 Field Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:21
CPC Classifications
F; F25; F25C; F25C5/00; F25C5/14; F25C5/142; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/907; Y10S100/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1524968A
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US1467883A
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US1869492A
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US1971087A
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US2241546A
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US2177132A
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US2332211A
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US2252900A
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US2325374A
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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) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |