Patent US2660131A successfully refreshed from Google Patents.
US2660131A
Expired / Lapsed
US
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Machine for producing extruded units
Assignee: CHRISTOPHER G PAPALEXIS
•
Filing: 1948-12-14
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Granted: 1953-11-24
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Expires: 1968-12-14
Abstract
No abstract record available.
Inventors
- 👤 Elliott Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:08
CPC Classifications
A; A21; A21C; A21C11/00; A21C11/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US209365A
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US239743A
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US248613A
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US278318A
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US598404A
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US1779876A
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US2062338A
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US2217135A
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US2295027A
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US2351493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |