US2610478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice-cream freezer with refrigerant control
Assignee: METROMATIC PRODUCTS Co
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Filing: 1949-09-12
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Granted: 1952-09-16
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Expires: 1969-09-12
Abstract
No abstract record available.
Inventors
- 👤 Jack W Lofstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:22
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F25B39/022; A; A23; A23G; A23G9/00; A23G9/04; A23G9/22; A23G9/222; F25C; F25C1/00; F25C1/12; F25C1/14; F25C1/145; F25C1/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |