Patent US2554016A successfully refreshed from Google Patents.
US2554016A
Expired / Lapsed
US
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Fuel oil filter
Assignee: EDDINGTON METAL SPECIALTY Co
•
Filing: 1948-04-07
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Granted: 1951-05-22
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Expires: 1968-04-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter V Czarnecki
- 👤 Casimer M Czarnecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:28
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/02; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/50; B01D29/52; B01D29/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189702931A
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US1702489A
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FR35110E
Cited
FR802427A
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US2208033A
Cited
US2339703A
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FR882093A
Cited
US2367873A
Cited
US2389431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |