Patent US2681798A successfully refreshed from Google Patents.
US2681798A
Expired / Lapsed
US
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Device for mixing, stirring, emulsifying, and pumping, and the acceleration of chemical and physical reactions by vibration
Assignee: Individual
•
Filing: 1950-04-11
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Granted: 1954-06-22
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Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 Muller Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:36
CPC Classifications
B; B01; B01F; B01F31/00; B01F31/44; B01F31/449
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US95514A
Cited
US166231A
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US1020694A
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US1445935A
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US1373674A
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US1450238A
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US2281094A
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US2291708A
Cited
US2424259A
Cited
US2513577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |