US2665557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant separating system for refrigerating machines
Assignee: General Electric Co
•
Filing: 1951-02-03
•
Granted: 1954-01-12
•
Expires: 1971-02-03
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Dodson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:48
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1726178A
Cited
US1758074A
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US1922942A
Cited
US2042394A
Cited
US2149358A
Cited
US2223882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |