Patent US2875989A successfully refreshed from Google Patents.
US2875989A
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Vibrator mixer
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1956-04-26
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Granted: 1959-03-03
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Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:13
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/04; A47J43/042; B; B01; B01F; B01F31/00; B01F31/20; B01F31/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1318740A
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US1756325A
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US1768718A
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US1757803A
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US2118732A
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US2198637A
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US2513577A
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US2498990A
Cited
US2620894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |