Patent US3115459A successfully refreshed from Google Patents.
US3115459A
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Assignee: Ametek Inc
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Filing: 1961-05-25
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Granted: 1963-12-24
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Expires: 1981-05-25
Abstract
No abstract record available.
Inventors
- 👤 Robert C Giesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/50; B01D29/56; B01D29/58; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D29/11; B01D29/13; B01D29/23; B01D29/232; B01D37/00; B01D37/02; Y; Y10; Y10S; Y10S210/00; Y10S210/05; Y10S55/00; Y10S55/24; Y10S55/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A FILTER CARTRIDGE FOR FILTERING LIQUID FUEL, AN INNER CORE FOR FILTERING SUBSTANTIALLY ALL PARTICLES FROM SAID FUEL COMPOSED OF PLEATED PERFORATED SHEET METAL AND FIBER GLASS LAMINATE IN TUBULAR FORM; AND MEANS COALESCING LIQUID WITHIN THE SUBSTANTIALLY PARTICLE-FREE FUEL INCLUDING A TUBULAR MEMBER SURROUNDING SAID INNER CORE AND COMPOSED OF FIBERS COATED WITH POLYETHYLENE AND HAVING A KNOB-LIKE-SURFACE STRUCTURE.
Claim 2
Dependent Claim
61 words
IN A FILTER CARTRIDGE FOR FILTERING LIQUID FUEL, AN INNER CORE FOR FILTERING SUBSTANTIALLY ALL PARTICLES FROM SAID FUEL COMPOSED OF PLEATED PERFORATED SHEET METAL AND FIBER GLASS LAMINATE IN TUBULAR FORM; AND MEANS COALESCING LIQUID WITHIN THE SUBSTANTIALLY PARTICLE-FREE FUEL INCLUDING A TUBULAR MEMBER SURROUNDING SAID INNER CORE AND COMPOSED OF FIBERS COATED WITH POLYETHYLENE AND HAVING A KNOB-LIKE-SURFACE STRUCTURE.
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |