US2662243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blending and/or warming extrusion device for plastics or the like
Assignee: Farrel Birmingham Co Inc
•
Filing: 1950-07-07
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Granted: 1953-12-15
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Expires: 1970-07-07
Abstract
No abstract record available.
Inventors
- 👤 Carl F Schnuck
- 👤 Warren C Whittum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:50
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/421; B29C; B29C48/00; B29C48/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US390567A
Cited
US2434690A
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US2431274A
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US2496625A
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US2543307A
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US2595455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |