US2687019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-headed commercial ice-cream freezer
Assignee: Individual
•
Filing: 1951-10-29
•
Granted: 1954-08-24
•
Expires: 1971-10-29
Abstract
No abstract record available.
Inventors
- 👤 Harvey F Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:46
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/22; A23G9/228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1473965A
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US1693677A
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US1675361A
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US1756261A
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US1866990A
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US1735724A
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US2015493A
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US2209979A
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US2304094A
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US2328810A
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US2508435A
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US2559032A
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US2446156A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |