Patent US3288290A successfully refreshed from Google Patents.
US3288290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter device
Assignee: Rosaen Filter Co
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Filing: 1965-04-14
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Granted: 1966-11-29
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Expires: 1985-04-14
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Rosaen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:35
CPC Classifications
B; B01; B01D; B01D36/00; B01D36/001; B01D35/00; B01D35/02; B01D35/027; B01D35/0276; B01D35/14; B01D35/143; B01D35/147; B01D2201/00; B01D2201/30; B01D2201/307
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
IN COMBINATION WITH A FLUID RESERVOIR HAVING AN UPER WALL, A FILTER DEVICE COMPRISING (A) A TUBULAR MEMBER HAVING AN OPEN INLET END AND AN OPEN END OPPOSITE SAID INLET END, (B) MEANS POSITIONING SAID TUBULAR MEMBER TO DEPEND FROM SAID UPPER WALL OF SAID RESERVOIR VERTICALLY INTO SAID RESERVOIR WITH THE INLET END BELOW THE LEVEL OF FLUID IN SAID RESEVEROIR AND SAID OPPOSITE END DISPOSED EXTERIORLY OF SAID UPPER WALL, (C) A HOUSING STRUCTURE INCLUDING A PORTION MOUNTED TO SAID OPPOSITE END OF SAID TUBULAR MEMBER AND PROVIDED WITH AN OUTLET, (D) A FILTER ASSEMBLY AND MEANS SLIDABLY MOUNTING SAID FILTER ASSEMBLY IN SAID TUBULAR MEMBER INTERMEDIATE SAID INLET END AND SAID OUTLET END; AND SAID FILTER ASSEMBLY INCLUDING AN ANNULAR FILTER ELEMENT HAVING AN OUTER SURFACE IN COMMUNICATION WITH SAID INLET END AND AN INNER SURFACE IN COMMUNICATION WITH SAID OUTLET, AND (E) AN INNER IMPERFORATE HOUSING MEMBER SECURED TO SAID FILTER ASSEMBLY AND INCLUDING A FIRST PORTION SPACED OUTWARDLY FROM SAID OUTER SURFACE OF SAID FILTER ELEMENT AND SURROUNDING A PORTION OF SAME ADJACENT THE INLET END OF SAID TUBULAR MEMBER TO DEFINE A COLLECTION CHAMBER THEREBETWEEN AND A SECOND-PORTION CLOSING THE END OF SAID COLLECTION CHAMBER ADJACENT SAID INLET END OF SAID TUBULAR MEMBER.
Claim 2
Dependent Claim
209 words
IN COMBINATION WITH A FLUID RESERVOIR HAVING AN UPER WALL, A FILTER DEVICE COMPRISING (A) A TUBULAR MEMBER HAVING AN OPEN INLET END AND AN OPEN END OPPOSITE SAID INLET END, (B) MEANS POSITIONING SAID TUBULAR MEMBER TO DEPEND FROM SAID UPPER WALL OF SAID RESERVOIR VERTICALLY INTO SAID RESERVOIR WITH THE INLET END BELOW THE LEVEL OF FLUID IN SAID RESEVEROIR AND SAID OPPOSITE END DISPOSED EXTERIORLY OF SAID UPPER WALL, (C) A HOUSING STRUCTURE INCLUDING A PORTION MOUNTED TO SAID OPPOSITE END OF SAID TUBULAR MEMBER AND PROVIDED WITH AN OUTLET, (D) A FILTER ASSEMBLY AND MEANS SLIDABLY MOUNTING SAID FILTER ASSEMBLY IN SAID TUBULAR MEMBER INTERMEDIATE SAID INLET END AND SAID OUTLET END; AND SAID FILTER ASSEMBLY INCLUDING AN ANNULAR FILTER ELEMENT HAVING AN OUTER SURFACE IN COMMUNICATION WITH SAID INLET END AND AN INNER SURFACE IN COMMUNICATION WITH SAID OUTLET, AND (E) AN INNER IMPERFORATE HOUSING MEMBER SECURED TO SAID FILTER ASSEMBLY AND INCLUDING A FIRST PORTION SPACED OUTWARDLY FROM SAID OUTER SURFACE OF SAID FILTER ELEMENT AND SURROUNDING A PORTION OF SAME ADJACENT THE INLET END OF SAID TUBULAR MEMBER TO DEFINE A COLLECTION CHAMBER THEREBETWEEN AND A SECOND-PORTION CLOSING THE END OF SAID COLLECTION CHAMBER ADJACENT SAID INLET END OF SAID TUBULAR MEMBER.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |