US2369553A
Expired / Lapsed
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Extrusion apparatus
Assignee: EIDP Inc
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Filing: 1943-04-29
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Granted: 1945-02-13
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Expires: 1963-04-29
Abstract
No abstract record available.
Inventors
- 👤 Reuben T Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:30
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06; D01D1/09; B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/45; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92019; B29C2948/9218; B29C2948/92323; B29C2948/92466; B29C2948/92504; B29C2948/92514; B29C2948/92704; B29C2948/92819; B29C2948/92971; B29C2948/9298; B29C48/03; B29C48/05
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) | 1948-02-13 | 1948-08-14 | 1949-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-13 | 1952-08-14 | 1953-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-13 | 1956-08-14 | 1957-02-13 | $7700.00 | Window Closed / Lapsed |