Patent US3015350A successfully refreshed from Google Patents.
Patent US2737299A successfully refreshed from Google Patents.
US2737299A
Expired / Lapsed
US
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Fuel oil filters
Assignee: Individual
•
Filing: 1951-03-09
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Granted: 1956-03-06
•
Expires: 1971-03-09
Abstract
No abstract record available.
Inventors
- 👤 Charles M Tursky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:08
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/50; B01D29/52; B01D29/44; B01D29/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2565445A
Cited
US673398A
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US1145372A
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US1335899A
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US2225813A
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US2399887A
Cited
US2430078A
Cited
US2487769A
Cited
US2507125A
Cited
US2537897A
Cited
US2609933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |