Patent US3342339A successfully refreshed from Google Patents.
US3342339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filters
Assignee: Individual
•
Filing: 1964-11-02
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Granted: 1967-09-19
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Carl R Riolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:48
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/06; B01D27/00; B01D27/04; B01D27/06; B01D27/08; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
AN OIL FILTER OF THE CHARACTER DESCRIBED, EMPLOYING A GENERALLY CYLINDRICAL OUTER CONTAINER WITH A FILTER CARTRIDGE THEREIN ARRANGED ON A REMOVABLE SPOOL HAVING A PERFORATE HOLLOW HUB WITH THE OIL FLOW INTO THE CONTAINER, INWARDLY THROUGH THE FILTER INTO THE HUB AND CENTRALLY OUT THROUGHONE END OF THE CONTAINER, SAID FILTER HAVING INCORPORATED THEREIN A PERMANENT BAR MAGNET EXTENDING ACROSS THE HUB AND SECURED AT ITS ENDS TO THE INSIDE OF THE HUB IN THE PATH OF THE FLOWING OIL WHEREBY THE MAGNETISM FROM SAID BAR MAGNET PERMEATES SAID HUB CIRCUMFERENTIALLY AND PROVIDES A MAGNETIC THROAT THROUGH WHICH THE OIL PASSES AFTER IT IS INITIALLY FILTERED.
Claim 2
Dependent Claim
107 words
AN OIL FILTER OF THE CHARACTER DESCRIBED, EMPLOYING A GENERALLY CYLINDRICAL OUTER CONTAINER WITH A FILTER CARTRIDGE THEREIN ARRANGED ON A REMOVABLE SPOOL HAVING A PERFORATE HOLLOW HUB WITH THE OIL FLOW INTO THE CONTAINER, INWARDLY THROUGH THE FILTER INTO THE HUB AND CENTRALLY OUT THROUGHONE END OF THE CONTAINER, SAID FILTER HAVING INCORPORATED THEREIN A PERMANENT BAR MAGNET EXTENDING ACROSS THE HUB AND SECURED AT ITS ENDS TO THE INSIDE OF THE HUB IN THE PATH OF THE FLOWING OIL WHEREBY THE MAGNETISM FROM SAID BAR MAGNET PERMEATES SAID HUB CIRCUMFERENTIALLY AND PROVIDES A MAGNETIC THROAT THROUGH WHICH THE OIL PASSES AFTER IT IS INITIALLY FILTERED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |