Patent US2750107A successfully refreshed from Google Patents.
US2750107A
Expired / Lapsed
US
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Centrifugal oil cleaner, including a cylindrical filter
Assignee: Federal Mogul Engineering Ltd
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Filing: 1953-03-04
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Granted: 1956-06-12
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Expires: 1973-03-04
Abstract
No abstract record available.
Inventors
- 👤 More David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:46
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/005; B04B1/00; F; F01; F01M; F01M1/00; F01M1/10; F01M2001/1028; F01M2001/1035; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191202420A
Cited
GB191413074A
Cited
US1468740A
Cited
US1619652A
Cited
US1714658A
Cited
US2087778A
Cited
US2257107A
Cited
US2650022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |