Patent US3124440A successfully refreshed from Google Patents.
US3124440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pocket-type
Assignee: —
•
Filing: —
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Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:13
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A POCKET TYPE FLUID FILTER COMPRISING: (A) SPACED PLEATS OF FLEXIBLE FILTERING MATERIAL WITH EACH PLEAT DIVIDED INTO AT LEAST TWO POCKET MEMBERS HAVING AN OPEN-END MOUTH IMMEDIATELY ADJACENT OPPOSITE SUPPORTING PORTIONS OF SAID PLEAT; (B) FRAME MEANS INCLUDING A PLURALITY OF SPACED PARALLEL ROWS OF SPACED APERTURES; (C) A PLURALITY OF PAIRS OF SEPARATE CONTIGUOUS SKIRT STRIPS OF PLIANT MATERIAL; (D) EACH OF SAID SKIRT STRIP PAIRS BEING FASTENED TO SAID OPPOSITE SUPPORTING PORTIONS OF A PLEAT AND BEND ONE WITH RESEPECT TO THE OTHER IN MIRROR IMAGE FORM TO DISPLACE SAID SUPPORTING PORTIONS IN CONTINUOUSLY RUNNING SUCCESSIVELY OPPOSED CRESTS AND VALLEYS TO FORM APERTURES SUBSTANTIALLY IN ALIGNMENT WITH SAID POCKET MEMBERS OF SAID PLEAT AND IN CONFORMATION IN SHAPE TO THE APERTURES OF SAID FRAME; AND, (E) APRON MEANS TO FASTEN SAID SKIRT STRIP PAIRS TO SAID FRAME TO EXTEND ALONG THE PERIPHERY OF THE APERATURE ROWS IN SAID FURNACE SO THAT THE APERTURES FORMED BY EACH OF SAID SKIRT STRIP PAIRS IN A PLEAT ARE SUBSTANTIALLY ALIGNED WITH THE SPACED APERTURES OF AN APERTURE ROW OF SAID FRAME.
Claim 2
Dependent Claim
181 words
A POCKET TYPE FLUID FILTER COMPRISING: (A) SPACED PLEATS OF FLEXIBLE FILTERING MATERIAL WITH EACH PLEAT DIVIDED INTO AT LEAST TWO POCKET MEMBERS HAVING AN OPEN-END MOUTH IMMEDIATELY ADJACENT OPPOSITE SUPPORTING PORTIONS OF SAID PLEAT; (B) FRAME MEANS INCLUDING A PLURALITY OF SPACED PARALLEL ROWS OF SPACED APERTURES; (C) A PLURALITY OF PAIRS OF SEPARATE CONTIGUOUS SKIRT STRIPS OF PLIANT MATERIAL; (D) EACH OF SAID SKIRT STRIP PAIRS BEING FASTENED TO SAID OPPOSITE SUPPORTING PORTIONS OF A PLEAT AND BEND ONE WITH RESEPECT TO THE OTHER IN MIRROR IMAGE FORM TO DISPLACE SAID SUPPORTING PORTIONS IN CONTINUOUSLY RUNNING SUCCESSIVELY OPPOSED CRESTS AND VALLEYS TO FORM APERTURES SUBSTANTIALLY IN ALIGNMENT WITH SAID POCKET MEMBERS OF SAID PLEAT AND IN CONFORMATION IN SHAPE TO THE APERTURES OF SAID FRAME; AND, (E) APRON MEANS TO FASTEN SAID SKIRT STRIP PAIRS TO SAID FRAME TO EXTEND ALONG THE PERIPHERY OF THE APERATURE ROWS IN SAID FURNACE SO THAT THE APERTURES FORMED BY EACH OF SAID SKIRT STRIP PAIRS IN A PLEAT ARE SUBSTANTIALLY ALIGNED WITH THE SPACED APERTURES OF AN APERTURE ROW OF SAID FRAME.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |