Patent US2657022A successfully refreshed from Google Patents.
US2657022A
Expired / Lapsed
US
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Beater mechanism for softening ice cream
Assignee: NAT DAIRY RES LAB Inc
•
Filing: 1951-04-27
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Granted: 1953-10-27
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Expires: 1971-04-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Newton E Spiess
- 👤 Edward M Gropen
- 👤 Kenneth R Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:15
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1498286A
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US1500061A
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US1825261A
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US1858796A
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US2052569A
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US1987258A
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US2027185A
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US2071410A
Cited
US2498237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |