Patent US2672736A successfully refreshed from Google Patents.
US2672736A
Expired / Lapsed
US
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Compressor cooling in refrigerating apparatus
Assignee: American Motors Corp
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Filing: 1950-08-31
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Granted: 1954-03-23
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Expires: 1970-08-31
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Philipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:04
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1883921A
Cited
US1922091A
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US2250648A
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US2445988A
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US2438114A
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US2484310A
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US2561305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |