US2444593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic temperature control for refrigerated open-top display cases
Assignee: Hussmann Corp
•
Filing: 1944-07-31
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Granted: 1948-07-06
•
Expires: 1964-07-31
Abstract
No abstract record available.
Inventors
- 👤 Russell E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:31
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0482; A47F3/0439
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2083442A
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US2133963A
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US2163031A
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US2175839A
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US2292015A
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US2271802A
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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) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |