Patent US2596640A successfully refreshed from Google Patents.
US2596640A
Expired / Lapsed
US
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Refrigerator compressor
Assignee: OLIVER IRON AND STEEL Corp
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Filing: 1946-08-21
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Granted: 1952-05-13
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Expires: 1966-08-21
Abstract
No abstract record available.
Inventors
- 👤 Berry Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:48
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1989552A
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FR779940A
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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) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |