Patent US2875592A successfully refreshed from Google Patents.
US2875592A
Expired / Lapsed
US
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Oil separator in refrigeration apparatus
Assignee: CHARNELL Inc
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Filing: 1956-10-08
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Granted: 1959-03-03
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Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Olaf C Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:30
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3229; F; F25; F25B; F25B31/00; F25B31/002; F25B31/004; F25B43/00; F25B43/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1836090A
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US1698939A
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US2145354A
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US2318318A
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US2523451A
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US2665557A
Cited
FR1065682A
Cited
US2767554A
Cited
US2776542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |