Patent US3333696A successfully refreshed from Google Patents.
US3333696A
Expired / Lapsed
US
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Self-cleaning mobile filter
Assignee: Rosaen Filter Co
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Filing: 1965-02-01
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Granted: 1967-08-01
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Rosaen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:17
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/62; B01D29/66; B01D35/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A FILTERING SYSTEM, A FLUID RESERVOIR AND A SELF CLEANING FILTERING ASSEMBLY COMPRISING, (A) A HOUSING INCLUDING A TUBULAR HOUSING MEMBER DEFINING A FILTER CHAMBER, SAID TUBULAR MEMBER HAVING AN INLET END POSITIONED WITHIN SAID RESERVOIR, (B) MEANS DEFINING A COLLECTION CHAMBER SEPARATED FROM SAID FILTER CHAMBER AND MEANS CONNECTING SAID FILTER CHAMBER AND SAID COLLECTION CHAMBER, (C) A FILTER ELEMENT CARRIED IN SAID FILTER CHAMBER, (D) VALVE MEANS OPERABLE UPON BEING ACTUATED TO CLOSE SAID INLET END OF SAID TUBULAR MEMBER, AND (E) MEANS OPERABLE UPON BEING ACTUATED TO DIRECT A CLEANING FLUID UNDER PRESSURE THROUGH SAID FILTER ELE-
Claim 2
Dependent Claim
101 words
IN A FILTERING SYSTEM, A FLUID RESERVOIR AND A SELF CLEANING FILTERING ASSEMBLY COMPRISING, (A) A HOUSING INCLUDING A TUBULAR HOUSING MEMBER DEFINING A FILTER CHAMBER, SAID TUBULAR MEMBER HAVING AN INLET END POSITIONED WITHIN SAID RESERVOIR, (B) MEANS DEFINING A COLLECTION CHAMBER SEPARATED FROM SAID FILTER CHAMBER AND MEANS CONNECTING SAID FILTER CHAMBER AND SAID COLLECTION CHAMBER, (C) A FILTER ELEMENT CARRIED IN SAID FILTER CHAMBER, (D) VALVE MEANS OPERABLE UPON BEING ACTUATED TO CLOSE SAID INLET END OF SAID TUBULAR MEMBER, AND (E) MEANS OPERABLE UPON BEING ACTUATED TO DIRECT A CLEANING FLUID UNDER PRESSURE THROUGH SAID FILTER ELE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |