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Patent US2941239A successfully refreshed from Google Patents.
US2941239A
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Mixing machine
Assignee: Paul Troester MaschinenfabriK
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Filing: 1958-04-16
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Granted: 1960-06-21
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Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Helmuth O Theysohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:32
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/52; B29B7/56; B29B7/562; B29B7/58; B29B7/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1256664A
Cited
US1600119A
Cited
US1850450A
Cited
US1930873A
Cited
US2551872A
Cited
US2537395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |