US2770952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator control system
Assignee: General Electric Co
•
Filing: 1953-06-30
•
Granted: 1956-11-20
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Edwin B Judd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:14
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25D; F25D2700/00; F25D2700/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950115A
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US2085868A
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US2064396A
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US2091884A
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US2196291A
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US2463027A
Cited
US2459083A
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US2612026A
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US2601466A
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US2583661A
Cited
US2697332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |