US2731805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:44
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00207; B60H1/00642; B60H1/0065; B60H1/00814; B60H1/00878; B60H1/00885; F; F25; F25B; F25B41/00; F25B41/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2286316A
Cited
US2286961A
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US2249223A
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US2311622A
Cited
US2344864A
Cited
US2290984A
Cited
US2394708A
Cited
US2401004A
Cited
US2454263A
Cited
US2400334A
Cited
US2614393A
Cited
US2607532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |