Patent US1850080A successfully refreshed from Google Patents.
Patent US2608394A successfully refreshed from Google Patents.
US2608394A
Expired / Lapsed
US
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Continuous mixer
Assignee: A TEICHERT AND SON Inc
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Filing: 1951-08-01
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Granted: 1952-08-26
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Expires: 1971-08-01
Abstract
No abstract record available.
Inventors
- 👤 Crawford A Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:52
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US156068A
Cited
US1288621A
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US1462119A
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US1663173A
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US1914459A
Cited
US2015939A
Cited
US2071373A
Cited
US2298160A
Cited
US2285765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |