US3337056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filter gaskets
Assignee: Tecalemit Engineering Ltd
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Filing: 1964-01-27
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Granted: 1967-08-22
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Stripp Peter William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:18
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D35/14; B01D35/147; B01D2201/00; B01D2201/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
A FLUID FILTER COMPRISING A TELESCOPICALLY INTERENGAGING BODY AND COVER WHICH FORM A FILTER CHAMBER IN WHICH A FILTER ELEMENT IS FITTED, WHEREIN THE BODY AND THE COVER, WHERE THEY ENGAGE IN TELESCOPIC OVERLAPPING RELATIONSHIP, INCLUDE PARTS HAVING CONCENTRIC SURFACE AT LEAST ONE OF WHICH IS SUBSTANTIALLY CYLINDRICAL AND IS RADIALLY ENGAGED BY A SEALING RING MADE OF A RESILIENT MATERIAL WHICH IS RESILIENTLY DEFORMED WHEN THE COVER IS FITTED TO THE CASING SO AS TO FORM A SEAL ONLY BETWEEN THE OVERLAPPING PORTIONS OF THE COVER AND CASING, THE SAID SEALING RING BEING FITTED IN A GROOVE FORMED IN ONE OF SAID PARTS SO THAT A PART OF THE RING IS ACCOMMODATED WITHIN THE GROOVE AND A PART PROJECTS FROM IT, RADIALLY ENGAGING THE OTHER, AND WHERIN THE SEALING RING IS MULTISIDED WHEN VIEWED IN SECTION, HAVING SIDES WHCH ARE INCLINDE AT ACUTE ANGLES TO THE AXIS OF THE RING, AND IN-
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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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |