US3276190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag-type gaseous fluid filter having enlarged filtering surfaces
Assignee: CONTINENTAL FILTER Corp A CORP OF OHIO
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Filing: 1964-11-12
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Granted: 1966-10-04
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 John F Babbitt
- 👤 Oscar A Wurtenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:07
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A GASEOUS FLUID FILTER COMPRISING A RECTANGULAR FRAME, AND A PLURALITY OF FILTERING BAGS SUPPORTED BY SAID FRAME WITH THEIR OPEN MOUTHS ARRANGED AT THE FLUID INLET FACE OF SAID FRAME; EACH OF THE SAID BAGS HAVING A PLURALITY OF INTEGRAL PLEATS ALONG OPPOSITE SIDES THEREOF AND EXTENDING LONGITUDINALLY OF SAID BAG FROM ITS MOUTH TO ITS DOWNSTREAM END, MEANS FOR HOLDING SAID PLEATS IN FOLDED CONDITION AT THE MOUTH OF SAID BAG, MEANS SUBDIVIDING SAID BAG LENGTHWISE INTO A PLURALITY OF FIRST DISTENDABLE TUBULAR PORTIONS, AND MEANS CONNECTING THE BAG MATERIAL OF THE RESPECTIVE FIRST TUBULAR PORTIONS TOGETHER AT SPACED LOCATIONS
Claim 2
Dependent Claim
102 words
A GASEOUS FLUID FILTER COMPRISING A RECTANGULAR FRAME, AND A PLURALITY OF FILTERING BAGS SUPPORTED BY SAID FRAME WITH THEIR OPEN MOUTHS ARRANGED AT THE FLUID INLET FACE OF SAID FRAME; EACH OF THE SAID BAGS HAVING A PLURALITY OF INTEGRAL PLEATS ALONG OPPOSITE SIDES THEREOF AND EXTENDING LONGITUDINALLY OF SAID BAG FROM ITS MOUTH TO ITS DOWNSTREAM END, MEANS FOR HOLDING SAID PLEATS IN FOLDED CONDITION AT THE MOUTH OF SAID BAG, MEANS SUBDIVIDING SAID BAG LENGTHWISE INTO A PLURALITY OF FIRST DISTENDABLE TUBULAR PORTIONS, AND MEANS CONNECTING THE BAG MATERIAL OF THE RESPECTIVE FIRST TUBULAR PORTIONS TOGETHER AT SPACED LOCATIONS
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |