Patent US2449800A successfully refreshed from Google Patents.
US2449800A
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US
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Refrigeration control apparatus
Assignee: General Electric Co
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Filing: 1944-12-08
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Granted: 1948-09-21
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Expires: 1964-12-08
Abstract
No abstract record available.
Inventors
- 👤 Edgar H Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:55
CPC Classifications
F; F25; F25D; F25D29/00; F25D29/005; F25B; F25B2500/00; F25B2500/31; F25D2700/00; F25D2700/10; F25D2700/12
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) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |