US2651186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous ice-cream freezer and method of making ice cream
Assignee: De Raef Corp
•
Filing: 1951-01-17
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Granted: 1953-09-08
•
Expires: 1971-01-17
Abstract
No abstract record available.
Inventors
- 👤 Walter L Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/14; A23G9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1533708A
Cited
GB348364A
Cited
GB374613A
Cited
US1983301A
Cited
US2131511A
Cited
US2290214A
Cited
US2272715A
Cited
US2411081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |