US2580219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled humidity refrigerator
Assignee: General Electric Co
•
Filing: 1948-05-25
•
Granted: 1951-12-25
•
Expires: 1968-05-25
Abstract
No abstract record available.
Inventors
- 👤 La Mar S Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/025; F25D2317/00; F25D2317/04; F25D2317/041; F25D2317/0413; F25D2317/04131
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1954148A
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US2073008A
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US2314190A
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US2436945A
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US2315460A
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US2386919A
Cited
US2426578A
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US2416777A
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US2452685A
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US2471137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |