Patent US2479804A successfully refreshed from Google Patents.
US2479804A
Expired / Lapsed
US
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Method and means for extruding plastic material
Assignee: Plax Corp
•
Filing: 1947-05-17
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Granted: 1949-08-23
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Expires: 1967-05-17
Abstract
No abstract record available.
Inventors
- 👤 Bailey James
- 👤 Robert W Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:50
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/313; B29C48/03; B29C48/07; B29C48/08; B29C48/255; B29C48/2556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US410822A
Cited
US2168288A
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US1976539A
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US2031387A
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US2121966A
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US2090404A
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US2318469A
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US2365375A
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US2393452A
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US2371709A
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US2364435A
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US2387718A
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US2369583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |