Patent US2960320A successfully refreshed from Google Patents.
US2960320A
Expired / Lapsed
US
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Mixing device
Assignee: Individual
•
Filing: 1958-06-09
•
Granted: 1960-11-15
•
Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Paul E Heider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:39
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/50; B01F33/502; B01F33/5023; B01F2101/00; B01F2101/06; B01F2101/18; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/23; B01F27/232; B01F27/2321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US356371A
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US1563101A
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US2438301A
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US2439541A
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US2538891A
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US2770376A
Cited
US2813704A
Cited
US2796185A
Cited
US2767963A
Cited
US2828112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |