Patent US2745643A successfully refreshed from Google Patents.
US2745643A
Expired / Lapsed
US
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Kneading pump
Assignee: Individual
•
Filing: 1952-09-02
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Granted: 1956-05-15
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Expires: 1972-09-02
Abstract
No abstract record available.
Inventors
- 👤 Kleinlein Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:12
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/243; B01; B01F; B01F27/00; B01F27/60; B01F27/72; B01F27/721; B01F27/723; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/484; B29B7/488; B29B7/489; B29C; B29C48/00; B29C48/03; B29C48/25; B29C48/36; B29C48/395; B29C48/40; B29C48/405; B29C48/41
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |