US2592712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable refrigerator
Assignee: ROBERT T COLLIER
•
Filing: 1944-04-10
•
Granted: 1952-04-15
•
Expires: 1964-04-10
Abstract
No abstract record available.
Inventors
- 👤 Marion F Knoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
F; F25; F25D; F25D19/00; F25D19/003; F25B; F25B27/00; F25B27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1920612A
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US1897223A
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US1791441A
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FR676408A
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FR693689A
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US1955345A
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US2316792A
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US2080195A
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US2009067A
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US1985636A
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US2138777A
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US2269099A
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US2181376A
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US2142960A
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US2187982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |