US3200953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter cartridge with pleated element
Assignee: Motors Liquidation Co
•
Filing: 1962-10-08
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Granted: 1965-08-17
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Julius M Komarmy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:18
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
136 words
A FILTER CARTRIDGE COMPRISING A PERFORATED HOUSING MEMBER AND A PERFORATED TUBE MEMBER COAXIALLY ARRANGED, IMPERMEABLE END PLATES CONNECTING SAID MEMBERS AND COOPERATING THEREWITH TO DEFINE AN ANNULAR CHAMBER, ONE OF SAID END PLATES HAVING A CENTRAL DISCHARGE OPENING, A SHEET OF FILTER MEDIUM FORMED INTO PLEATS EACH HAVING AN ACUTE ANGLE NARROW APEX EXTENDING FROM ONE OF SAID END PLATES TO THE OTHER, RETAINING MEANS SURROUNDING AND CONTACTING THE OUTER PERIMETER OF EACH END OF SAID PLEATED SHEET, ANNULAR SHOULDER MEANS INTERPOSED BETWEEN AN INTERMEDIATE PORTION OF SAID TUBE MEMBER AND SAID PLEATED SHEET AND EXTENDING INTO SAID ANNULAR CHAMBER, AND SAID RETAINING MEANS AND ANNULAR SHOULDER MEANS EXERTING PRESSURE IN RADIAL DIRECTIONS AGAINST SAID PLEATED SHEET AND CAUSING EACH OF SAID PLEATS TO BE BOWED WITH RESPECT TO THE AXIS OF THE SAID MEMBERS.
References Cited (Backward Citations)
US1303438A
Cited
US2902163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |